Use the t -distribution and the sample results to complete the test of the hypot

Question

Use the t -distribution and the sample results to complete the test of the hypotheses. Use a 5% significance level. Assume the results come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal. Test H_0: mu = 4 vs H_a: mu notequalto 4 using the sample results x = 4.8, s = 2.3, with n = 15. (a) Give the test statistic and the P -value. Round your answer for the test statistic to two decimal places and your answer for the P -value to three decimal places. test statistic = 1.35 P -value = 009

Explanation / Answer

Using Excel,

P-value=TDIST(1.35,15-1,2) = 0.198 (ans)                                                                                            

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