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Question 1: An auditor for Health Maintenance Services of Georgia reports 40% of policyholders 55 years or older submit a claim during the year. Fifteen policyholders are randomly selected for company records.a. How many of the policyholders would you expect to have filed a claim within the last year?b. What is the probability that 10 of the selected policyholders submitted a claim last year?c. What is the probability that 10 or more of the selected policyholders submitted a claim last year?d. What is the probability that more than 10 of the selected policyholders submitted a claim last year?
Question 2: Refer to the Lincolnville School District bus data.
a. Refer to the maintenance cost variable. The mean maintenance cost for last year is $4,552 with a standard deviation of $2332. Estimate the number of buses with a maintenance cost of more than $6,000. Compare that with the actual number. Create a frequency distribution of maintenance cost. Is the distribution normally distributed?
b. Refer to the variable on the number of miles driven since the last maintenance. The mean is 11,121 and the standard deviation is 617 miles. Estimate the number of buses traveling more than 11,500 miles since the last maintenance. Compare that number with the actual value. Create a frequency distribution of miles since maintenance cost. Is the distribution normally distributed?
Attachment:- Practice problems.rar
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