Compute the observed significance of the test

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Reference no: EM131813651

Question: The average amount of time that visitors spent looking at a retail company's old home page on the world wide web was 23.6 seconds. The company commissions a new home page. On its first day in place the mean time spent at the new page by 7,628 visitors was 23.5 seconds with standard deviation 5.1 seconds.

a. Test at the 5% level of significance whether the mean visit time for the new page is less than the former mean of 23.6 seconds, using the critical value approach.

b. Compute the observed significance of the test.

c. Perform the test at the 5% level of significance using the p-value approach. You need not repeat the first three steps, already done in part (a).

Reference no: EM131813651

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