Question: Changing the experiment. Suppose you know that online sales differ across days of the week. To compare twoWeb page designs, you choose two successive weeks

Changing the experiment. Suppose you know that online sales differ across days of the week. To compare twoWeb page designs, you choose two successive weeks in the middle of a month. You flip a coin to assign one Monday to the first design and the other Monday to the second. You repeat this for each of the seven days of the week.

You now have 7 sales amounts for each design. It is incorrect to use the two-sample t test to see if the mean sales differ for the two designs. Carefully explain why.

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