A data set includes data from student evaluations of courses. The summary statis

Question

A data set includes data from student evaluations of courses. The summary statistics are n = 84, x= 3.34, s= 0.65. Use a 0.10 significance level to test the claim that the population of student course evaluations has a mean equal to 3.50. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? $3.50 C. Ho : 3.50 H:H>3.50 ??. ??: #3.50 HH-3.50 D. Ho H 3.50 H:H

Explanation / Answer

given that: here , test statistic= t score= -2.26 , df = n-1 = 83 , alpha= significance level = 0.10 , corresponding to that the p value is

P-value = 0.0264

The result is significant at p < 0.10

We reject null hypothesis because P-value is less than alpha.

Therefore the population of student course evalutions has a mean not equal to 3.50

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