Use the following information to answer the question. According to the website ww.costofwedding.com, the average cost of flowers for a wedding is $698. Recently, in a random sample of 40 weddings in the U.S. it was found that the average cost of the flowers was $734, with a standard deviation of $102. On the basis of this, a 95% confidence interval for the mean cost of flowers for a wedding is $701 to $767.
-Does the confidence interval provide evidence that the mean cost of flowers for a wedding has increased?
A)Yes
B)No

Question

Quizplus · Accepted Answer

The confidence interval of $701 to $767 does not include the previously stated average cost of $698, suggesting that the mean cost of flowers for a wedding has likely increased.

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