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D USE THE INFORMATION BELOW TO ANSWER QUESTIONS 15 THRU 18 A company recently announced that they have found a way to help college students complete a mathematics assessment test more quickly. The company said that using a specific tapping method for 10 minutes, before taking the assessment, would help students complete the test more quickly. A researcher wants to use a statistical test to decide if the tapping method is effective. The researcher has previous data from thousands of college students who took this test. The time it took these students to complete the test follows a normal distribution with mean u=70 minutes and standard deviation =4 minutes. The researcher thinks the mean for the students who did 10 minutes of tapping before the exam will take less time. The researcher randomly selected 45 college students for testing purposes. D Question 15 1 pts Pick the hypotheses most appropriate to deal with the problem above. O Ho : p =70 HA : M # 70 O Ho : p = 0.70 HA : P 70 Question 16 1 pts Pick the equation most appropriate to deal with the problem above. TRIT Question 17 1 pts If the p-value for the test is 0.1435, what is the value of the test statistic (assume the test statistic is negative)? Op - -1.45 Op- -1.93 O z =-1.06 Op- -1.78 Question 18 1 pts If the p-value for the test is 0. 0752, choose the most appropriate conclusion for the hypothesis test (Assume a significance level of 5%). O At the 5% significance level there is insufficient evidence to support the researcher's hypothesis that the mean for the students who did 10 minutes of tapping before the exam will take more time. O At the 5%% significance level there is insufficient at the mean for the students who did 10 minutes of tapping before the exam will take less time. O At the 5% significance level there is suff who did 10 minutes of tapping before the exam will take less time. O At the 5% significance level there is sufficient evidence to support the researcher's hypothesis that the mean for the students who did 10 minutes of tapping before the exam will take more time