Why the analysts didnt find the confidence interval useful

Reference no: EM131422162

Credit card charges. A credit card company takes a random sample of 100 cardholders to see how much they charged on their card last month. A histogram and boxplot are as follows:

1325_Fig 9.jpg

A computer program found that the resulting 95% confidence interval for the mean amount spent in March 2005 is (- $28366.84, $90691.49). Explain why the analysts didn't find the confidence interval useful, and explain what went wrong.

Reference no: EM131422162

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