Hint(s) Check My Work (No more tries available) At Western University the historical mean of scholarship examimation scores for freshman applicatioris is 900. A historical population standard...

Extracted text: Hint(s) Check My Work (No more tries available) At Western University the historical mean of scholarship examimation scores for freshman applicatioris is 900. A historical population standard deviation o = 180 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. Ho: u equal to 900 H: p not equal to 900 b. 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 the nearest whole number)? ( 910.05 959.94 ) 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 freshman applications has changed? Yes d. What is the p-value (te 4 decimals)z (Use Table 1 from Anbent x B.) 0.0060 Cheek My Work (No more tries available)