3/31/22, 8:47 PM Assignment Print View 3. Award: 10.00 points You did not receive full credit for this question in a previous attempt National Motors has equipped the ZX-900 with a new disk brake system. We define / to be the mean stopping distance (from a speed of 35 mph) of all ZX- 900s. National Motors would like to claim that the ZX-900 achieves a shorter mean stopping distance than the 60 it claimed by a competitor. (a) Set up the null and alternative hypotheses needed to support National Motors' claim. HO: H 60 versus Ha: H 60. (b) A television network will allow National Motors to advertise its claim if the appropriate null hypothesis can be rejected at o = .05. If a random sample of 81 ZX-900s has a mean stopping distance of x = 57.8 ft, will National Motors be allowed to advertise the claim? Assume that o = 6.02 it and justify your answer using both a critical value and a p-value. (Round your z to 2 decimal places and p-value to 4 decimal places. Negative value should be indicated by a minus sign.) https://ezto.mheducation.com/hm.tpx?todo=c15SinglePrintView&singleQuestionNo=3.&postSubmission View=13252718583777792&wid=1325271908... 1/23/31/22, 8:47 PM Assignment Print View References Worksheet Difficulty: 3 Hard Leaming Objective: 10-03 Use critical values and p-values to perform a z test about a population mean when is known. https://ezto.mheducation.com/hm.tpx?todo=c15SinglePrintView&singleQuestionNo=3.&postSubmission View=13252718583777792&wid=1325271908... 2/2