CNNBC recently reported that the mean annual cost of auto insurance is 1038 dollars. Assume the standard deviation is 264 dollars. You take a simple random sample of 87 auto insurance policies. Find the probability that a single randomly selected value is less than 998 dollars. P(X < 998) = Find the probability that a sample of size n = 87 is randomly selected with a mean less than 998 dollars. P(M<998) =

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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CNNBC recently reported that the mean annual cost of auto insurance is 1038 dollars. Assume the
standard deviation is 264 dollars. You take a simple random sample of 87 auto insurance policies.
Find the probability that a single randomly selected value is less than 998 dollars.
P(X < 998) =
Find the probability that a sample of size n = 87 is randomly selected with a mean less than 998
dollars.
P(M< 998) =
Transcribed Image Text:CNNBC recently reported that the mean annual cost of auto insurance is 1038 dollars. Assume the standard deviation is 264 dollars. You take a simple random sample of 87 auto insurance policies. Find the probability that a single randomly selected value is less than 998 dollars. P(X < 998) = Find the probability that a sample of size n = 87 is randomly selected with a mean less than 998 dollars. P(M< 998) =
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