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Prior to a new drive through system the mean wait time at a certain fast...

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Prior to a new drive through system the mean wait time at a certain fast food restaurant was 99 seconds Use the data in the table below to decide whether the evidence suggests the mean wait time is different than 99 seconds with their new system Assume wait times are normally distributed and use an a 0 05 significance level Use the p value approach 69 9 65 74 84 8 81 3 a For this study we should use t test for a population mean b The null and alternative hypotheses would be Ho H c The test statistic d The p value 99 99 93 6 86 84 8 107 6 please show your answer to 3 decimal places Please show your answer to 4 decimal places 97 5

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