3/31/22, 8:48 PM Assignment Print View 5. Award: 10.00 points You did not receive full credit for this question in a previous attempt Bayus (1991) studied the mean numbers of auto dealers visited by early and late replacement buyers. Letting / be the mean number of dealers visited by all late replacement buyers, set up the null and alternative hypotheses needed if we wish to attempt to provide evidence that u differs from 4 dealers. A random sample of 100 late replacement buyers yields a mean and a standard deviation of the number of dealers visited of @ = 4.32 and s = 0.67. Using a critical value and assuming approximate normality to test the hypotheses you set up by setting a equal to .10, .05, .01, and .001. Do we estimate that / is less than 4 or greater than 4? (Round your answers to 3 decimal places.) HO : H 4 versus Ha : M 4 . t 4.476 to.05 1.660 to.025 .984 to.005 2.626 t0.0005 3.391 https://ezto.mheducation.com/hm.tpx?todo=c15SinglePrintView&singleQuestionNo=5.&postSubmission View=13252713797758612&wid=132527 1908... 1/23/31/22, 8:48 PM Assignment Print View There is strong evidence. J is ess than 4 . References Worksheet Difficulty: 2 Medium Learning Objective: 10-04 Use critical values and p-values to perform a t test about a population mean when is unknown. https://ezto.mheducation.com/hm.tpx?todo=c15SinglePrintView&singleQuestionNo=5.&postSubmission View=13252713797758612&wid=1325271908... 2/2