Solved: Testing Hypotheses. In Exercises 924, assume that a simple random sample has

Chapter 8, Problem 19

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Testing Hypotheses. In Exercises 924, assume that a simple random sample has been selected and test the given claim. Unless specified by your instructor, use either the Pvalue method or the critical value method for testing hypotheses. Identify the null and alternative hypotheses, test statistic, Pvalue (or range of Pvalues), critical value(s), and state the final conclusion that addresses the original claim.Years in College Listed below are the numbers of years it took for a random sample of college students to earn bachelor's degrees (based on datafrom the National Center for Education Statistics). Use a 0.01 significance level to test the claim that for all college students,the mean time required to earn a bachelor's degree is greater than 4.0 years. Is there anything about the data that would suggest that the conclusionmight not be valid?4 4 4 4 4 4 4.5 4.5 4.5 4.5 4.5 4.5 6 6 8 9 9 13 13 15