Question

Anystate Auto Insurance Company took a random sample of 368 insurance claims paid out during a 1-year period.

The average claim paid was $1560. Assume σ = $260.

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

lower limit $

upper limit $

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

lower limit $

upper limit $

Answer 1