please answer the following

Content X Take Test: H X Take Test: N X C Get Homev X C Statistics an X C QUESTION X C Get Homew X C Statistics an X G The value tl X + X -> C loyno.blackboard.com/webapps/assessment/take/launch.jsp?course_assessment_id=_52525_1&course_id=_69748_1&content_id=_1841204_1&step=null NP A * Question Completion Status: sample, you calculate a mean yield of 8,853 and a std deviation of 1, 150. What are the critical values for this hypothesis test? -1.64 to 1.64 O -2.58 to 2.58 O -1.96 and 1.96 O -1.33 to 1.33 QUESTION 38 2 points Save Answer As a part of her evaluation of New Orleans city employees, the Mayor instructs you to audit the parking tickets issued by city parking officers to determine the number of tickets per officer that were improperly issued. Because there has recently been a change in the parking department's hiring practices, the Mayor suspects that the mean number of improperly issued tickets has changed. In past years, the number of improperly issued tickets per officer had a Normal distribution with a mean (mu) of 380, and sto dev (sigma) of 35.2. You conduct a hypothesis test at the 909% level to test the null hypothesis that the mean number of improperly issued tickets is different than 380. Your audit of 50 randomly selected parking officers yields an average of 390 tickets. What do you conclude? Has the number of improperly issued parking tickets changed? Yes, you reject the null hypothesis ( of no change) and conclude that the number of improperly issued parking tickets has changed. O No, you cannot reject the null hypothesis (of no change). Therefore, you cannot conclude that the number of improperly issued parking tickets has changed. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Close Window Save and Submit Type here to search O em a A 1:10 PM 4/20/2020QUESTION 39 2 points Save Answer The Department of Agriculture wants to determine whether the mean yield per acre for a particular variety of soybeans is different this year compared to the historical avg yield of 520 bushels per acre. Thus, the null and alternative hypotheses are Ho: mu = 520 Ha: mu is not = to 520 You set out to conduct a hypothesis test at the 95% level. Mean yields are distributed Normally. You take a sample of 36 different acres. From this sample, you calculate a mean yield of 573 and a std deviation of 24. Do you reject or not-reject the null hypothesis? O Reject the null hypothesis. O Do not reject the null hypothesis. QUESTION 40 2 points Save Answer Keeping everything else constant, your test statistic will be if your sample size is greater? O higher O lower the same (neither higher, nor lower)