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A Major Department Store Chain Is Interested in Estimating the Average

Question 45

Multiple Choice

A major department store chain is interested in estimating the average amount its credit card customers spent. Fifteen credit card accounts were randomly sampled and analyzed with the following results: A major department store chain is interested in estimating the average amount its credit card customers spent. Fifteen credit card accounts were randomly sampled and analyzed with the following results: = $50.50 and = 400. Which of the following is a 95% confidence interval for the average amount the credit card customers spent? A) $50.50$9.09 B) $50.50$10.12 C) $50.50$11.00 D) $50.50$11.08 = $50.50 and A major department store chain is interested in estimating the average amount its credit card customers spent. Fifteen credit card accounts were randomly sampled and analyzed with the following results: = $50.50 and = 400. Which of the following is a 95% confidence interval for the average amount the credit card customers spent? A) $50.50$9.09 B) $50.50$10.12 C) $50.50$11.00 D) $50.50$11.08 = 400. Which of the following is a 95% confidence interval for the average amount the credit card customers spent?


A) $50.50$9.09
B) $50.50$10.12
C) $50.50$11.00
D) $50.50$11.08

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