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Cnnbc recently reported that the mean annual cost of auto

CNNBC recently reported that the mean annual cost of auto insurance is 1009 dollars. Assume the standard deviation is 159 dollars. You will use a simple random sample of 72 auto insurance policies.

Find the probability that a single randomly selected policy has a mean value between 960.3 and 1039 dollars.

P(960.3 < X < 1039) =

Find the probability that a random sample of size n = 72 has a mean value between 960.3 and 1039 dollars.

P(960.3 < ¯x< 1039) =

Enter your answers as numbers accurate to 4 decimal places.

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Basic Statistics: Cnnbc recently reported that the mean annual cost of auto

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Basic Statistics: Cnnbc recently reported that the mean annual cost of auto

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