Question

A random sample of 100 medical school applicants at a university has a mean total score of 498 on the MCAT. According to a report, the mean total score for the school’s applicants is more than 500. Assume the population standard deviation is 6.2.

At alpha equals 0.01, is there enough evidence to reject the report’s claim?                                  

6.) Identify the null hypothesis, H naught.

7.) Identify the alternative hypothesis, H sub a.

8.) Find the standardized test statistic, z. (  is known).

9.) For alpha equals 0.01 , find and describe the rejection region(s).

10.) Determine whether to reject or fail to reject .

1. Interpret this decision in the context of the original claim.

Answer 1

Here you can use confidence Interval criteria also. That is if H0 is lies between given interval then we accept H0 at given level of significance otherwise we reject H0. Give thumb up. Thank you