Answer:
0.15 % of American women have a shoe size greater than 12.6
Explanation:
*See the attached photo.
The percentage of American women that have shoe sizes that are at least 12.6 is; 0.0015
Empirical RuleWe are given;
Mean; x' = 8.04
Standard deviation; σ = 1.52
Using the empirical rule, we can have the data either 1, 2 or 3 standard deviations from the mean.
Thus;
At 1 standard deviation from mean, we have;
8.04 ± 1(1.52)
⇒ (6.52, 8.56)
At 2 standard deviations from the mean, we have;
8.04 ± 2(1.52)
⇒ (5, 11.08)
At 3 standard deviations from the mean, we have;
8.04 ± 3(1.52)
⇒ (3.48, 12.6)
We can see that the one with at least 12,6 is 3 standard deviations from the mean which from empirical rule is 99.7%
Thus;
percentage of American women have shoe sizes that are at least 12.6 = 100% - 99.7% - 0.15%
P(x ≥ 12.6) = 0.15% = 0.0015
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What is 154.88 rounded to the nearest hundredth?
Answer:
160
Explanation:
hope it helpsssssssss
Answer:
160
hope it helps
Explanation:
bye bye brainliest pls
g Dissmore's has reduced prices by 17% on everything to thank their customers for their patronage. If Ben & Jerry's ® Phish Food TM ice cream cost $2.99 before the price reduction, how much does it cost now? (Round your answer to the nearest penny.)
Answer:
The ice cream will cost $2.5 after the price reduction.
Explanation:
⭐This problem represents a percent decrease
To perform a percent decrease on the ice cream, we need to take 17% of the old price, and subtract that from the old price.
Let's set up the equation. Let x = the new price.
\(2.99 - \frac{17*2.99}{100} = x\)
\(2.99 - \frac{50.83}{100} = x\)
\(2.99 - 0.5083 = x\)
\(2.5 = x\)
∴ The ice cream will cost $2.5 after the price reduction.
Kylie works for a large nursery and is investigating whether to use a new brand of seeds. The new brand of seeds advertises that 93% of the seeds germinate, which is higher than the germination rate of the seeds she is currently using. She will change over to this new brand unless the actual germination rate is less than what is advertised. Kylie conducts an experiment by randomly selecting 76 seeds of the new brand and plants them. She finds that 70 of those seeds germinated. What are the null and alternative hypotheses for this hypothesis test?
The correct null and alternative hypothesis for the hypothesis test will be: B. H0: p=0.93
H a: p<0.93
What is the null and alternative hypothesis?The null hypothesis is a type of scientific prediction that shows no correlation between variables whereas the alternative hypothesis indicates a connection between some variables.
So, for Kylie's experiment above, the null hypothesis indicated by H0: p=0.93 indicate the absence of a relationship while the alternative hypothesis indicates a relationship of less than 93%.
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What range would you estimate the optimal pH of catalase to be? Why?
Who is the chief minister of Assam, india?
Answer:
Sarbananda Sonowal
PLEASE ANSWER ASAP!! Which is a factor that keeps Earth in orbit around the Sun? (Only 1 Answer )
O the orbital path of the moon
O the gravitational pull of the Sun
O the continuous motion of the universe
O Earth’s changing speed and direction
The large airline company, Tale winds, knows from experience that only 72% of the passengers booked for flights actually show up. Suppose that we will take a random sample of 7 tale winds passengers. Let ^p represent the proportion of passengers from the sample who show up for their flight. Consider the sampling distribution of the sample proportion^p.
Answer:
The large airline company, Cloudscape, knows from experience that only 72% of the passengers booked for flights actually show up. Suppose that we will take a random sample of 7 Cloudscape passengers. Let p represent the proportion of passengers from the sample who show up for their flight. Consider the sampling distribution of the sample ...
Explanation:
The sample proportion based on the question that we have here is 0.72
What is sample proportion?The sample proportion (p) indicates the percentage of people in a sample who exhibit a particular quality or attribute. Divide the number of individuals (or items) who have the desired attribute by the overall sample size to obtain the sample proportion.
P=X/N, where X represents the number of successes and N represents the sample size, yields the sample proportion.
Hence from the question, we see that 72% of the passengers booked for flights actually show up. hence the proportion is 0.72.
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The average math score for the class 5 is 23.6. A researcher is interested to check if the score is higher in class 5 that in USA. How many students are needed to ensure that a two-sided test of hypothesis has 80% power to detect a difference in score of 2 marks? If the population standard deviation is 5.7.
Answer:
To calculate the sample size needed for a study with a certain power, we need to use the formula for power in a two-sample t-test. The formula is:
n = [(Zα/2 + Zβ)^2 * 2 * σ^2] / d^2
where:
- Zα/2 is the critical value from the standard normal distribution for a two-tailed test with the desired level of confidence. If we want a 95% confidence level (typical for this kind of test), Zα/2 would be approximately 1.96.
- Zβ is the critical value corresponding to the desired power. If we want 80% power, Zβ is approximately 0.84.
- σ is the population standard deviation, which is given as 5.7.
- d is the difference we want to detect, which is 2 in this case.
Plugging these values into the formula, we get:
n = [(1.96 + 0.84)^2 * 2 * (5.7)^2] / (2)^2
Now we can calculate this:
n = [7.8 * 2 * 32.49] / 4
n = [504.72] / 4
n = 126.18
The sample size should be a whole number, and it's generally recommended to round up to ensure sufficient power, so we would need a sample size of approximately 127 students in class 5 to have 80% power to detect a difference of 2 marks.
Explanation:
Academic integrity can be applied to all subject areas. Please select the best answer from the choices provided T F
The correct answer is true.
Hope this helps.
:)
Answer:
True
Explanation:
on EDGE 2021
What is the difference between safety stock inventory and the cross docking method?
Answer:
Safety stock inventory refers to the minimum level of stock that a company holds in its warehouse to ensure that it can meet customer demand even in case of unexpected events, such as supplier delays or unexpected spikes in demand.
Cross docking, on the other hand, is a method of inventory management in which goods are received from suppliers and shipped to customers without being stored in a warehouse.
Explanation:
Typically, we can't see different colors in light because
the light waves are moving too slowly
the light waves do not reach our eyes
the light waves are moving too quickly
the light waves do not have any color
Answer:
C
Explanation:
Our eyes can not see the waves that move that fast.
The expenses and income of an individual
are given in table form to the right. Find the
net monthly cash flow (it could be positive
or negative). Assume salaries and wages
are after taxes. When you need to convert
between weeks and months, assume that
1 month=4 weeks.
>
HW Score: 20%, 2 of 10 points
Points: 0 of 1
Income
Part-time job: $500/month
College fund from grandparents:
$350/month
Scholarship: $6000/year
The net monthly cash flow is $ (Round to the nearest dollar as needed.)
Save
Expenses
Rent: $400/month
Groceries: $60/week
Tuition and fees: $2400 twice a
year
Incidentals: $130/week
The net cash flow would be given as $375.Net cash flow is a profitability metric that represents the amount of money produced or lost by a business during a given period.
What is meant by net cash flow?This is the term that is used to refer to the total cash inflow that a business would have minus the cash outflow that they have.
Your net cash flow would be
$3,275 - $2,900
= 375
The inflow of cash in the business is given to be 3275 while the outflow of cash is given as 2900.
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The net cash flow would be given as $375.Net cash flow is a profitability metric that represents the amount of money produced or lost by a business during a given period.
What is meant by net cash flow?This is the term that is used to refer to the total cash inflow that a business would have minus the cash outflow that they have.
Your net cash flow would be
$3,275 - $2,900
= 375
The inflow of cash in the business is given to be 3275 while the outflow of cash is given as 2900.
The net cash flow would be given as $375.Net cash flow is a profitability metric that represents the amount of money produced or lost by a business during a given period.To learn more about net cash flow refer to:
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Which word best replaces dog in the sentence? plsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss i give brainlist
When operating a crane, which of the following is an important safety precaution? Select all that apply.
Answer: Soil or ground condition shall be checked and should be leveled.
Explanation:
How are observational studies of populations different from experimental studies? What can be learned from observational population studies?
Answer:
In an observational study, we measure or survey members of a sample without trying to affect them. In a controlled experiment, we assign people or things to groups and apply some treatment to one of the groups, while the other group does not receive the treatment.
Explanation:
Select the best answer for the question.
10. Sigmund Freud believed that your
personality.
O A. unconscious early childhood events
B. genes and DNA
C. family wealth
O D. exercise routine
What was finally created in December 1970 to address the problem of factories, businesses, etc. being able to pollute the environment without regulation?
Answer:
"In December 1970, Congress authorized the creation of a new federal agency to tackle environmental issues, the U.S. Environmental Protection Agency."
Explanation:
How is a ratio table used to graph equivalent ratios?
A. Find the value of each ratio as a fraction and plot the fractions on a number line.
B. Find the differences of the values in the ratio table and plot the differences on a number line.
c. Use the values in the ratio table to write coordinate pairs for the points on the graph.
D. Use the equivalent ratio in lowest terms to plot the numerator on the x-axis and the denominator on the y-axis, then connect the two points
C. Use the values in the ratio table to write coordinate pairs for the points on the graph.
In one town, 65% of adults have health insurance. What is the probability that 5 adults selected at random from the town all have health insurance?
Answer:
60%
Explanation:
Out of every 100 adults, 65 have health insurance.
So out of 5, we have to find 65% of 5.
65/100 x 5
=3.25
That means, out of every 5 adults, 3 adults (rounded to the nearest whole number) have health insurance
So, the probability of 3/5 is
3/5 x 100 %
= 60%
I hope this is correct and helps.
Thank you.
The process described in your text in which people seek to maximize strengths and gains and minimize losses due to aging is termed
Based on research analysis, the process described in the text in which people seek to maximize strengths and gains and minimize losses due to aging is termed "Optimal Aging."
What is Optimal Aging?Optimal Aging is widely referred to as the capability to perform conditions like physical, functional, cognitive, emotional, social, and spiritual.
Optimal Aging is a process carried out by individuals to get fulfillment regardless of their current medical conditions.
Things that lead to Optimal AgingVarious natural activities lead to Optimal Aging, some of which are the following:
ExerciseNutritionSleepAvoidance of disease-causing agents, etc.Hence, in this case, it is concluded that the correct answer is Optimal Aging.
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Apparent magazine reports that the average amount of wireless data used by teenagers each month is seven gigs bites for her science fair project Ellis that’s out to prove the magazine is wrong she claims that the Mina Monchhichi teenagers in her area is less than a report Ella collects information from a simple random sample for teenagers at her high school and calculate the mean of 5.8 GB per month with a standard deviation of 1.9 Gigamon bytes per month assume the population distribution is approximately normal test Ella’s claim at 0.005 level of significance State to null and alternative paths hypothesis for this test for this test
Ella's hypothesis is that the average wireless data usage of teenagers in her area is less than seven gigabytes per month, and she aims to test this using a one-sample t-test with a significance level of 0.005.
How to State a Null and Alternative Hypotheses?Null hypothesis (H0): The average amount of wireless data used by teenagers in Ella's area is not less than seven gigabytes per month.
Alternative hypothesis (Ha): The average amount of wireless data used by teenagers in Ella's area is less than seven gigabytes per month.
Ella aims to test if the mean data usage in her sample provides evidence to reject the claim made by the magazine. She collects data from a simple random sample at her high school, where the sample mean is 5.8 GB per month and the standard deviation is 1.9 GB per month.
Assuming the population distribution is approximately normal, Ella will conduct a one-sample t-test at a 0.005 level of significance to determine if there is sufficient evidence to support her claim.
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How are the astronomer in the first poem and the little girl in the second poem ALIKE?
es )
A)
Both look for answers from nature.
B)
Both are sad at the thought of death.
Both focus on appearance instead of on what is behind it.
D)
Both are trying to understand the motions of the heavenly bodies.
Answer:
C
Explanation:
Just did it right now
Answer:
C. they both focus on appearance, instead of on what is behind it
Explanation:
how many people are hating Jeremiah Bedford
How does the author address a
conflicting point of view?
Answer:
stating some proven statistics in its favor.
The number of tickets purchased by an individual for Beckham College’s holiday music festival is a uniformly distributed random variable ranging from 2 to 10. Find the mean and standard deviation of this random variable. (Round your answers to 2 decimal places.)
Answer:
The mean of the distribution is 4.00 and the standard deviation is 2.31
Explanation:
Given
Range = 2 to 10
Type of distribution = uniform distribution
Required
1. Mean
2. Standard Deviation
The mean of uniform distribution is calculated as thus;
\(Mean = \frac{1}{2}(a + b)\)
Where b and a are the intervals of the distribution
b = upper bound = 10
a = lower bound = 2
So,
\(Mean = \frac{1}{2}(a + b)\)
Substitute 10 for b and 2 for a
\(Mean = \frac{1}{2}(2 + 10)\)
\(Mean = \frac{1}{2}(12)\)
\(Mean = \frac{1}{2} * 12\)
\(Mean = 6\)
\(Mean = 6.00\) (Approximated to 2 decimal places)
The standard deviation of uniform distribution is calculated as thus;
σ = √σ²
Where σ represents the standard deviation and σ² represents the variance.
Calculate variance
σ² = Var
\(Var = \frac{(b-a)^2}{12}\)
Substitute 10 for b and 2 for a
\(Var = \frac{(10 - 2)^2}{12}\)
\(Var = \frac{8^2}{12}\)
\(Var = \frac{64}{12}\)
\(Var = 5.33\)
Recall that
σ = √σ² = √Var
Substitute 5.33 for Var
σ = √5.33
σ = 2.309401076758503
σ = 2.31 (Approximated)
Hence, the mean of the distribution is 4.00 and the standard deviation is 2.31
Part A: Explain the meaning of these terms and how each relates to the scientific method.
1. Variables
2. Demand characteristic
3. Theory
4. Experiment
5. Data
6. Hypothesis
7. Case study
8. Dependent variable
9. Survey
10. Naturalistic
11. Design
12. Stimulus
13. Independent variable
14. Control group
15. Conclusion
16. random
ont describes part of the design, theory, variable or a hypothesis of
Below is the meaning of each term and how each relates to the scientific method:
Variables can be understood as a concept that expresses a value, classification or measure in scientific research.Demand characteristics relate to the needs and interest in scientific research.Theory is the set of untested arguments that justify information.Experiment is a systematic way of exploring data and information, for the accomplishment of the scientific study.Data is a set of research records that serve as the basis for a scientific study.Hypothesis is an assertion about a research question, proposing an expected result.Case study is the explanation of real phenomena through the collection and demonstration of qualitative data.Dependent variable is the factor that changes in relation to the manipulation of the independent variable.Survey is a research method to collect qualitative and quantitative data and information that will inform the research.Naturalistic is a theory about the knowledge of the world and its phenomena explained through the scientific method.Design is the scientific method whose purpose is the development of products and services to enhance the human experience.Stimulus are items of different natures used to promote a reaction of the components of a scientific study.Independent variable is the variable manipulated in a scientific study for the purposes of analysis and observation.Control group are groups that serve as parameters for the results of a research, not being manipulated, only compared.Conclusion the final part of the work, the synthesis of the considerations found through the testing of the theory and hypothesis.Random a choice from a representative sample of a larger population in a study.What is scientific methodology?It is a set of methods and techniques structured and organized in a complex way to test a theory, find new concepts and knowledge through research, study, experimentation and analysis.
Therefore, the scientific methodology helps the development of society through the production of reliable and tested knowledge in order to assist in social and technological progress.
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alo
Empirical Method: A coin is tossed 500 times and comes up heads 280 times. Use the Empirical Method to approximate the
probability that the coin comes up heads. Round your answer to four decimal places as necessary.
Answer:
empirical method states that 68% of data falls between 1 standard deviation of the mean, 95% between 2 standard deviatiosn from the mean, and 99.7% from 3 standard deviations from the mean
Explanation:
50% chance of landing on heads
You see, unless both sides of a coin are the same, it will always be a 50/50 outcome. No matter how many times you flip the coin, the chance will not change. The coin pretty much relies on luck if you think about it
Which format for informational resources do you prefer? Defend your answer.
A sample of 1300 computer chips revealed that 66% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature claimed that above 63% do not fail in the first 1000 hours of their use. Is there sufficient evidence at the 0.10 level to support the company's claim? State the null and alternative hypotheses for the above scenario.
The hypothesis of the question is written below
H0: (p ≤ 0.63)
H1: (p > 0.63)
How to write the hypothesisThe hypothesis for the given scenario can be summarized as follows:
Null Hypothesis (H0): The proportion of computer chips that do not fail in the first 1000 hours of use is 63% or less. (p ≤ 0.63)
Alternative Hypothesis (Ha): The proportion of computer chips that do not fail in the first 1000 hours of use is greater than 63%. (p > 0.63)
The null hypothesis assumes that the company's claim is not supported, suggesting that the proportion of chips not failing within 1000 hours is 63% or lower. T
he alternative hypothesis counters this claim and proposes that the proportion is higher than 63%. The significance level chosen for the test is 0.10, which will be used to evaluate the evidence from the sample data.
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Which of the following best describes the relationship between a stock resource and a potential resource?
A stock resource becomes a potential resource after it has been evaluated and quantified
A stock resource becomes a potential resource once the resource is found and extracted
A stock resource can never be a potential resource because it has already been excavated
A stock resource becomes a potential resource when technology is developed to reach and extract it
The statement that best describes the relationship between stock resource and potential resource is: B. A stock resource becomes a potential resource when technology is developed to reach and extract it.
What is Stock Resource?Stock resource can be defined as the resources that are expended and cannot be renewed. Examples of stock resources are petroleum and coal deposit.
What is Potential Resource?Potential resource is a resource that are available in unknown quantity and quality, which and can be made use of later in the future by extraction using developed technology.
Therefore, the statement that best describes the relationship between stock resource and potential resource is: B. A stock resource becomes a potential resource when technology is developed to reach and extract it.
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The statement that best describes the relationship between stock resource and potential resource is: B. A stock resource becomes a potential resource when technology is developed to reach and extract it.
What is Stock Resource?
Stock resource can be defined as the resources that are expended and cannot be renewed. Examples of stock resources are petroleum and coal deposit.
What is Potential Resource?
Potential resource is a resource that are available in unknown quantity and quality, which and can be made use of later in the future by extraction using developed technology.
Therefore, the statement that best describes the relationship between stock resource and potential resource is: B. A stock resource becomes a potential resource when technology is developed to reach and extract it.
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and I also did it on edge 2022