What is the P-value? (4 decimal places) B. at Alpha =0.05 would you reject or not reject the null hypothesis?
CNN and Act Media provided a television channel targeted to individuals waiting in supermarket check out lines. The channel showed news, short features, and advertisements. The length of the program was baed on the assumption that the population mean time a shopper stands in a super market checkout line is 8 minutes. A sample of actual waiting times will be used to test this assumption and determine whether actual mean waiting time differs from this standard
Furthermore a sample of 120 shoppers showed a sample mean waiting time of 8.4 minutes. Assume the population standard deviation of 3.2 minutes.
A. What is the P-value? (4 decimal places)
B. at Alpha =0.05 would you reject or not reject the null hypothesis?
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