Question: How large a sample size should the manufacturer described in Exercise 18 take if it wants to estimate annual maintenance costs for this entry-level compact

How large a sample size should the manufacturer described in Exercise 18 take if it wants to estimate annual maintenance costs for this entry-level compact in the third year of its life to within $10, with 98% confidence?

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For 98 confidence the zscore is 2326 A sample size ... View full answer

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