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The average price of those 40 books was 6500 with variance

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Reference no: EM13471129

A sample of 35 textbooks was taken from the TCU bookstore. The average price of the books was $52.50 with a standard deviation (S) of $5.10. Forty textbooks were sampled from the SMU bookstore. The average price of those 40 books was $65.00 with a variance (S2) of $18.06. Calculate a 90% confidence interval for the difference in the average prices for the two stores. Explain your findings.

Reference no: EM13471129

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