CNNBC recently reported that the mean annual cost of auto insurance is 1017 dollars. Assume the standard deviation is 205 dollars. You take a simple random sample of 86 auto insurance policies. Find the probability that a single randomly selected value is less than 972 dollars. P(X < 972) = Find the probability that a sample of size n = 86 is randomly selected with a mean less than 972 dollars. P(M < 972) =

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CNNBC recently reported that the mean annual cost of auto insurance is 1017 dollars. Assume the
standard deviation is 205 dollars. You take a simple random sample of 86 auto insurance policies.
Find the probability that a single randomly selected value is less than 972 dollars.
P(X < 972) =
Find the probability that a sample of size n = 86 is randomly selected with a mean less than 972
dollars.
P(M < 972) =
Enter your answers as numbers accurate to 4 decimal places.
Transcribed Image Text:CNNBC recently reported that the mean annual cost of auto insurance is 1017 dollars. Assume the standard deviation is 205 dollars. You take a simple random sample of 86 auto insurance policies. Find the probability that a single randomly selected value is less than 972 dollars. P(X < 972) = Find the probability that a sample of size n = 86 is randomly selected with a mean less than 972 dollars. P(M < 972) = Enter your answers as numbers accurate to 4 decimal places.
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