In a hypothesis test with hypotheses Ho : H2 74 and H : H<74, a random sample of 20 elements selected from the population produced a mean of 68.2 and a standard deviation of 13.8. The significance level is 1%. Assume the population is normaly distributed. What is the critical value of t? -2.861 -2.539 -2.528 O -2.33 What is the value of the test statistic, t, rounded to three decimal places? What is the p-value for this hypothesis test, rounded to four decimal places? Should you reject or fail to reject the null hypothesis in this test?

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A: From the given information we find the degrees of freedom and critical value.

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