Question 4The average student loan debt is reported to be 525,235. A student belives that the student loan debt ishigher in her area. She takes a random sample of 100 college students in her area and determines the meanto be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the studentclaim at a 5% significance level?a) Determine the null and alternative hypotheses.Ho: PH.: µSelect an answer(Put in the correct symbol and value)b) Determine the test statistic. Round to two decimals.t%3Dc) Find the p-value, Round to 4 decimals.P-value =d) Make a decision.O Reject the null hypothesisO Fail to reject the null hypothesise) Write the conclusion.O There is sufficient evidence to support the claim that student loan debt is higher than 525,235,O There is not sufficient evidence to support the claim that student loan debt is higher than S25,235.Submit Question

Question 4 <> The average student loan debt is reported to be S25,235. A student belives that the student loan debt is higher in her area. She takes a random sample of 100 college students in her area and determines the mean to be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the student' claim at a 5% significance level? a) Determine the null and alternative hypotheses. = 1 :0H Ha: Select an answer v (Put in the correct symbol and value) b) Determine the test statistic. Round to two decimals. t%3D c) Find the p-value. Round to 4 decimals. P-value = d) Make a decision. O Reject the null hypothesis O Fail to reject the null hypothesis e) Write the conclusion. O There is sufficient evidence to support the claim that student loan debt is higher than $25,235. O There is not sufficient evidence to support the claim that student loan debt is higher than $25,235. Submit Question

Question 4 <> The average student loan debt is reported to be S25,235. A student belives that the student loan debt is higher in her area. She takes a random sample of 100 college students in her area and determines the mean to be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the student' claim at a 5% significance level? a) Determine the null and alternative hypotheses. = 1 :0H Ha: Select an answer v (Put in the correct symbol and value) b) Determine the test statistic. Round to two decimals. t%3D c) Find the p-value. Round to 4 decimals. P-value = d) Make a decision. O Reject the null hypothesis O Fail to reject the null hypothesis e) Write the conclusion. O There is sufficient evidence to support the claim that student loan debt is higher than $25,235. O There is not sufficient evidence to support the claim that student loan debt is higher than $25,235. Submit Question

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The work week for adults in the US that work full time is normally distributed with a mean of 47 hours. A newly hired engineer at a start-up company believes that employees at start-up companies work more on average then most working adults in the US. She asks 12 engineering friends at start-ups for the lengths in hours of their work week. Their responses are shown in the table below. Test the claim using a 5% level of significance. Give answer to at least 4 decimal places. Hours 46 49 58 55 49 68 45 48 46 45 51 50 What are the correct hypotheses? H0: hoursH1: hours Based on the hypotheses, find the following:Test Statistic=p-value= The correct decision is to . The correct summary would be: that the mean number of hours of all employees at start-up companies work more than the US mean of 47 hours.
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The work week for adults in the US that work full time is normally distributed with a mean of 47 hours. A newly hired engineer at a start-up company believes that employees at start-up companies work more on average then most working adults in the US. She asks 12 engineering friends at start-ups for the lengths in hours of their work week. Their responses are shown in the table below. Test the claim using a 10% level of significance. Give answer to at least 4 decimal places. Hours 49 40 58 52 49 70 49 59 47 49 53 55 What are the correct hypotheses? H0: hoursH1: hours Based on the hypotheses, find the following:Test Statistic=p-value= The correct decision is to . The correct summary would be: that the mean number of hours of all employees at start-up companies work more than the US mean of 47 hours.
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The work week for adults in the US that work full time is normally distributed with a mean of 47 hours. A newly hired engineer at a start-up company believes that employees at start-up companies work more on average then most working adults in the US. She asks 12 engineering friends at start-ups for the lengths in hours of their work week. Their responses are shown in the table below. Test the claim using a 10% level of significance. Give answer to at least 4 decimal places. Hours 48 43 58 51 45 62 47 55 49 49 52 53 a. What are the correct hypotheses? Ho: Select an answer H₁: Select an answer b. Test Statistic = Based on the hypotheses, find the following: c. p-value = ? 0 ? 0 d. The correct decision is to Select an answer Add Work hours hours e. The correct summary would be: Select an answer hours of all employees at start-up companies work more than the US mean of 47 hours. that the mean number of
2. Are low-fat diets or low-carb diets more effective for weight loss? This question was addressed by a scientific study). A sample of 77 subjects went on a low-carbohydrate diet for six months. At the end of that time the sample mean weight loss was 4.7 kg with a sample standard deviation of 7.2 kg. A second sample of 79 subjects went on a low-fat diet. Their sample mean weight loss was 2.6 kg with a standard deviation of 5.9 kg.a. Can you conclude that the mean weight loss is greater for those on the low-carbohydrate diet than that of the low-fat diet? Use the correct test statistic and p-value to answer. b. Can you conclude that the mean weight loss on the low-carbohydrate diet is 1kg greater than that of the low-fat diet? Use the correct test statistic and p-value to answer.