I just need help with parts B & D Hint(s) Check My WorkAt Western University the historical mean of scholarship examination scores for freshman applications is 900. A historical population standard deviation o = 180 is assumedknown. 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.Ho: µ equal to 900Ha: H not equal to 900b. What is the 95% confidence interval estimate of the population mean examination score if a sample of 200 applications provided a sample mean of = 935 (to thenearest whole number)?c. Use the confidence interval to conduct a hypothesis test. Using a = 0.05, can the assistant dean conclude that the mean examination score for the new freshmanapplications has changed?Yesd. What is the p-value (to 4 decimals)? (Use Table 1 from Appendix B.)

Answered: Image /qna-images/answer/e72e012e-cded-4a81-918e-8554ee192682.jpg

Answered: At Western University the historical…

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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