ou may need to use the appropriate appendix table or technology to answer this question. At a university the historical mean of scholarship examination scores for freshman applications is 800. A historical population standard deviation ? = 150 is assumed known. Each year, the assistant dean uses a sample of applications to determine whether the mean examination score for the new freshman applications has changed. (a) State the hypotheses. (b) What is the 95% confidence interval estimate of the population mean examination score if a sample of 100 applications provided a sample mean x = 833? (c) Use the confidence interval to conduct a hypothesis test. Using ? = 0.05, what is your conclusion? (d) What is the test statistic? What is the p-value?
ou may need to use the appropriate appendix table or technology to answer this question. At a university the historical mean of scholarship examination scores for freshman applications is 800. A historical population standard deviation ? = 150 is assumed known. Each year, the assistant dean uses a sample of applications to determine whether the mean examination score for the new freshman applications has changed. (a) State the hypotheses. (b) What is the 95% confidence interval estimate of the population mean examination score if a sample of 100 applications provided a sample mean x = 833? (c) Use the confidence interval to conduct a hypothesis test. Using ? = 0.05, what is your conclusion? (d) What is the test statistic? What is the p-value?
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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You may need to use the appropriate appendix table or technology to answer this question.
At a university the historical mean of scholarship examination scores for freshman applications is 800. A historical population standard deviation
? = 150
is assumed known. Each year, the assistant dean uses a sample of applications to determine whether the mean examination score for the new freshman applications has changed.(a)
State the hypotheses.
(b)
What is the 95% confidence interval estimate of the population mean examination score if a sample of 100 applications provided a sample mean
x = 833?
(c)
Use the confidence interval to conduct a hypothesis test. Using
? = 0.05,
what is your conclusion?(d)
What is the test statistic? What is the p-value?
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