(Answered) Please answer following answer clearlythe average annual

Statistics

Please answer following answer clearly.

The average annual cost of automobile insurance is $687 (National Association of Insurance Commissioners, January 2003). Use this value as the population mean and assume that the population standard deviation is σ=$230. Consider a sample of 45 automobile insurance policies.

a. What sample size would you recommend if an insurance agency wanted the sample mean to estimate the population mean within $25?

b. What is the probability that the sample mean is within $100 of the population mean?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91860170
Price:- $20

Verified Expert

Priced at $40 Now at $20, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

According to the current results website the state of

According to the Current Results website, the state of California has a mean annual rainfall of 21 inches, whereas the state of New York has a mean annual rainfall of 55 inches. Assume that the standard deviation for bot ...

The table below shows the results of a survey in which

The table below shows the results of a survey in which 2556 adults from Country? A, 1107 adults from Country? B, and 1060 adults from Country C were asked if human activity contributes to global warming. Complete parts? ...

To what extent does the client hold a responsibility for

To what extent does the client hold a responsibility for the success of their financial plan?

A study if the impact of stress on the amount of

A study if the impact of stress on the amount of beta-endorphins released in the blood was reported. Researchers took beta-endorphin levels for 19 patients 12 hours before surgery and again 10 minutes before surgery. If ...

You are the foreman of the bar-s cattle ranch in colorado a

You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age ...

Introduction to epidemiology assignment -assignment should

Introduction to Epidemiology Assignment - Assignment should be typed, with adequate space left between questions. Read the following paper, and answer the questions below: Sundquist K., Qvist J. Johansson SE., Sundquist ...

According to a pew research center poll 22 of adult

According to a Pew Research Center poll, 22% of adult Americans have contributed to an online fundraising project. A random sample of 100 adults is selected. Let the random variable X be the number of adult Americans who ...

Suppose you bought a five-year zero-coupon treasury bond

Suppose you bought a five-year zero-coupon Treasury bond with $ 1000 face value for $800. . Answer the following questions: (a) What is the yield to maturity on the bond? (b) Assume the yield to maturity on comparable bo ...

According to the center for disease control the mean total

According to the center for Disease Control, the mean total cholesterol for men between the ages of 20-29 is 180 milligrams per deciliter with a standard deviation of 36.2. A healthy total cholesterol level is less than ...

An investment costs 60096 and offers a return of 10 percent

An investment costs $60,096 and offers a return of 10 percent annually for ten years. What are the annual cash inflows anticipated from this investment? Use Appendix D to answer the question. Round your answer to the nea ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert