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(Solved): CNNBC recently reported that the mean annual cost of auto insurance is 1017 dollars. Assume the stan ...



CNNBC recently reported that the mean annual cost of auto insurance is 1017 dollars. Assume the standard deviation is 113 dollars. You will use a simple random sample of 147 auto insurance policies. You may assume original population is approximatley normally distributed, and round your answers to three decimals. Find the probability that a single randomly selected policy has a mean value between 999.3 and 1019.8 dollars. Find the probablitty that a random sample of n=147 has a mean value between 999.3 amd 1019.8 dollars



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