Question

The college bookstore tells prospective students that the average cost of its textbooks is $102. A random sample of 81 textbooks found the mean price to be $105.80, with a sample standard deviation of $22.50. Assuming the distribution of textbook prices is normally distributed, does this sample indicate that the average cost of textbooks is actually greater than $1027 Use a 5 level of significance for your test. a.) What is a State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? H: HE Select an answer The test is a Select an answer test b.) Identify the Sampling Distribution you will use. What is the value of the test statistic? The best sampling distribution to use is the select an answer distribution The test statistic (z ort value)is - c.) Find or estimate the p-value for the test. The p-value is - Select an answer d.) Conclude the test. Based on this we will select an answer the null hypothesis.