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Part (1) What is the p-value? (Round your answer to four decimal places.) Enter a number. Part (g) ⒸPart (h) Part (1) Explain what the p-value means for this problem. O If Ho is true, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If H, is false, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. O If He is false, then there is a chance equall to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If Ho is true, then there is a chance equall to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. Submit Answer to two Explain how you determined which distribution to use. O The t-distribution will be used because the samples are dependent. The standard normal distribution will be used because the samples involve the difference in proportions. O The standard normal distribution will be used because the samples are independent and the population standard deviation is known. O The t-distribution will be used because the samples are independent and the population standard deviation is not known. Viewing Saved Work Revert to Last Response Submit Assignment Save Assignment Progress Home My Assignments Request Extension

Part (1) What is the p-value? (Round your answer to four decimal places.) Enter a number. Part (g) ⒸPart (h) Part (1) Explain what the p-value means for this problem. O If Ho is true, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If H, is false, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. O If He is false, then there is a chance equall to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If Ho is true, then there is a chance equall to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. Submit Answer to two Explain how you determined which distribution to use. O The t-distribution will be used because the samples are dependent. The standard normal distribution will be used because the samples involve the difference in proportions. O The standard normal distribution will be used because the samples are independent and the population standard deviation is known. O The t-distribution will be used because the samples are independent and the population standard deviation is not known. Viewing Saved Work Revert to Last Response Submit Assignment Save Assignment Progress Home My Assignments Request Extension

MATLAB: An Introduction with Applications
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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Part (0) What is the test statistic? (If using the z distribution round your answer to two decimal places, and if using the t distribution round your answer to three decimal places.) Part (f) What is the p-value? (Round your answer to four decimal places.) Enter a number. Explain what the p-value means for this problem. O If H, is true, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If H, is false, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. O If Ho is false, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If Ho is true, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. □ Part (g) Part (h) Ⓒ Part (1) Explain how you determined which distribution to use. O The t-distribution will be used because the samples are dependent. The standard normal distribution will be used because the samples involve the difference in proportions. The standard normal distribution will be used because the samples are independent and the population standard deviation is known. O The t-distribution will be used because the samples are independent and the population standard deviation is not known. Submit Answer Viewing Saved Work Revert to Last Response O Submit Assignment Save Assignment Progress Home My Assignments |||||_|| Request Extension
Transcribed Image Text:Part (0) What is the test statistic? (If using the z distribution round your answer to two decimal places, and if using the t distribution round your answer to three decimal places.) Part (f) What is the p-value? (Round your answer to four decimal places.) Enter a number. Explain what the p-value means for this problem. O If H, is true, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If H, is false, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. O If Ho is false, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is at least $800 less than the sample mean salary of electrical engineers. O If Ho is true, then there is a chance equal to the p-value that the sample mean salary of mechanical engineers is $800 more than the sample mean salary of electrical engineers. □ Part (g) Part (h) Ⓒ Part (1) Explain how you determined which distribution to use. O The t-distribution will be used because the samples are dependent. The standard normal distribution will be used because the samples involve the difference in proportions. The standard normal distribution will be used because the samples are independent and the population standard deviation is known. O The t-distribution will be used because the samples are independent and the population standard deviation is not known. Submit Answer Viewing Saved Work Revert to Last Response O Submit Assignment Save Assignment Progress Home My Assignments |||||_|| Request Extension
ASK YOUR TEACHER 5. [4/14 Points] DETAILS Mean entry-level salaries for college graduates with mechanical engineering degrees and electrical engineering degrees are believed to be approximately the same. A recruiting office thinks that the mean mechanical engineering salary is actually lower than the mean electrical engineering salary. The recruiting office randomly surveys 44 entry level mechanical engineers and 60 entry level electrical engineers. Their mean salaries were $46,100 and $46,900, respectively. Their standard deviations were $3450 and $4210, respectively. Conduct a hypothesis test at the 5% level to determine If you agree that the mean entry-level mechanical engineering salary is lower than the mean entry-level electrical engineering salary. Let the subscript m = mechanical and e = electrical. NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population normally distributed. (In general, you must first prove that assumption, though.) PREVIOUS ANSWERS 103 ILLOWSKYINTROSTAT1 10.1.081.HW. Part (a) □ Part (b) Part (c) Part (d) State the distribution to use for the test. (Enter your answer in the form z or to where df is the degrees of freedom. Round your answer to two decimal places.) MY NOTES
Transcribed Image Text:ASK YOUR TEACHER 5. [4/14 Points] DETAILS Mean entry-level salaries for college graduates with mechanical engineering degrees and electrical engineering degrees are believed to be approximately the same. A recruiting office thinks that the mean mechanical engineering salary is actually lower than the mean electrical engineering salary. The recruiting office randomly surveys 44 entry level mechanical engineers and 60 entry level electrical engineers. Their mean salaries were $46,100 and $46,900, respectively. Their standard deviations were $3450 and $4210, respectively. Conduct a hypothesis test at the 5% level to determine If you agree that the mean entry-level mechanical engineering salary is lower than the mean entry-level electrical engineering salary. Let the subscript m = mechanical and e = electrical. NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population normally distributed. (In general, you must first prove that assumption, though.) PREVIOUS ANSWERS 103 ILLOWSKYINTROSTAT1 10.1.081.HW. Part (a) □ Part (b) Part (c) Part (d) State the distribution to use for the test. (Enter your answer in the form z or to where df is the degrees of freedom. Round your answer to two decimal places.) MY NOTES
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