Has the average time between telephone orders changed from 3.8 minutes, the mean of two years ago? This is the question facing a telephone mail-order company that has just started selling items based on special promotional materials. The population standard deviation from initial study was 0.5 minutes. A random sample of 100 telephone orders reveals a sample mean of 4 minutes. A significance level of 0.02 is chosen for this hypothesis test. Test the hypothesis using the p-value and choose which of the following outcomes is true. Select one: a. p-value = 0.00003, less than the significance level 0.02, reject the null hypothesis b. p-value = 0.00006, less than the significance level 0.02, reject the null hypothesis c. p-value = 0.99997, greater than the significance level 0.02, fail to reject the null hypothesis d. p-value = 0.00003, less than the significance level 0.02, fail to reject the null hypothesis

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