Confidence interval for the mean clain payment

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Anystate Auto Insurance Company took a random sample of 388 insurance claims paid out during a 1-year period. The average claim paid was $1575. Assume σ = $240.

Find a 0.90 confidence interval for the mean claim payment. (Round your answers to two decimal places.)

lower limit    

upper limit    

Find a 0.99 confidence interval for the mean claim payment. (Round your answers to two decimal places.)

lower limit    

upper limit

Reference no: EM132139618

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