Mathematics, 11.12.2019 21:31 coolkason

Ersatz beneficial insurance wants to estimate the cost of damage to cars due to accidents. the standard deviation of the cost is known to be $200. they want to estimate the mean cost using a 95 percent confidence interval within plus or minus $10. what is the minimum sample size n?
answer

a. 1083
b. 4002
c. 1537
d. 2301

Answers: 3

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