- A Custodian Wishes To Compare Two Competing Floor Waxes To Decide Which One Is Best He Believes That The Mean Of Waxwin 1 (74.79 KiB) Viewed 36 times
A custodian wishes to compare two competing floor waxes to decide which one is best. He believes that the mean of WaxWin is less than the mean of WaxCo. In a random sample of 60 floors of WaxWin and 33 of WaxCo. WaxWin had a mean lifetime of 20.5 and WaxCo had a mean lifetime of 20.6. The population standard deviation for WaxWin is assumed to be 10.3 and the population standard deviation for WaxCo is assumed to be 8.4. Perform a hypothesis test using a significance level of 0.10 to help him decide. Let WaxWin be sample 1 and WaxCo be sample 2. The correct hypotheses are: Ο Ηο: μι < με HA₁₂(claim) © Ho: με 2 με HA1₂(claim) O Ho: 1 = 2 HA: M1 M2(claim) Since the level of significance is 0.10 the critical value is -1.282 (round to 3 places) The test statistic is: The p-value is: (round to 3 places)