Determining confidence interval for the mean price

Reference no: EM1315647

A random sample of 40 new cars was taken with a mean dealer sticker price of $24,310. Assuming that the population standard deviation is σ = $7,200, find the confidence interval for the mean price, μ, of all dealer sticker prices of new cars: for a confidence level of 90% in thousands of dollars:

(22.44, 26.18)

(22.08, 26.54)

(20.16, 28.62)

Reference no: EM1315647

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