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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 H P c The test statistic t 3 141 93 6 a For this study we should use t test for a population mean b The null and alternative hypotheses would be Ho 99 99 86 84 8 d The p value 0 0117 e The p value is a f Based on this we should Select an answer the null hypothesis g Thus the final conclusion is that please show your answer to 3 decimal places 107 6 Please show your answer to 4 decimal places 97 5 The data suggest the population mean is not different at a 0 05 so there is sufficient evidence to conclude that the mean wait time is different The data suggest the populaton mean is significantly different at a 0 05 so there is sufficient evidence to conclude that the mean wait time is different The data suggest the population mean is not significantly different at a 0 05 so there is not sufficient evidence to conclude that the mean wait time is different

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