CNNBC recently reported that the mean annual cost of auto insurance is 958 dollars. Assume the standard deviation is 150 dollars. You will use a simple random sample of 83 auto insurance policies. Find the probability that a single randomly selected policy has a mean value between 951.4 and 990.9 dollars. P(951.4 < X< 990.9) - Find the probability that a random sample of sizen = dollars. 83 has a mean value between 951.4 and 990.9 P(951.4 < M< 990.9) = Enter your answers as numbers accurate to 4 decimal places. Question Help: D Video Message instructor

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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CNNBC recently reported that the mean annual cost of auto insurance is 958 dollars. Assume the standard
devíation is 150 dollars. You will use a simple random sample of 83 auto insurance policies.
Find the probability that a single randomly selected policy has a mean value between 951.4 and 990.9
dollars.
P(951.4 < X < 990.9) =
83 has a mean value between 951.4 and 990.9
Find the probability that a random sample of size n =
dollars.
P(951.4 < M < 990.9) =
Enter your answers as numbers accurate to 4 decímal places.
Question Help: O Video O Message instructor
Submit Question
Transcribed Image Text:CNNBC recently reported that the mean annual cost of auto insurance is 958 dollars. Assume the standard devíation is 150 dollars. You will use a simple random sample of 83 auto insurance policies. Find the probability that a single randomly selected policy has a mean value between 951.4 and 990.9 dollars. P(951.4 < X < 990.9) = 83 has a mean value between 951.4 and 990.9 Find the probability that a random sample of size n = dollars. P(951.4 < M < 990.9) = Enter your answers as numbers accurate to 4 decímal places. Question Help: O Video O Message instructor Submit Question
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