statistics

posted by .

Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. What is the probability that fewer than 45 of the claims have been padded?

• statistics -

Your values are the following:
p = .45, q = 1 - p = .55, x = 45, and n = 110

Use the normal approximation to the binomial distribution.

Find mean and standard deviation.
mean = np = (100)(.45) = ?
sd = √npq = √(100)(.45)(.55) = ?

Once you determine the mean and standard deviation, use z-scores and z-table to find probability:

z = (x - mean)/sd

Substitute the values into the formula. Once you have the z-score, determine your probability using a z-table.

I hope this will help get you started.

• statistics -

Correction:
Use 110 for n.

Respond to this Question

 First Name School Subject Your Answer

Similar Questions

1. Statistics

Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. …
2. Statistics

Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. …
3. Statistics

Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. …
4. Statistics

Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. …
5. Statistics

Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. …
6. Statistics

Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. …
7. statistics

According to the book Are yoy Normal?, 40% of all US adults try to pad their auto insurance claims to cover their deductible. Your office had just received 128 in insurance claims to be processed in the next few days. What is the probability
8. statistics

Late payment of medical claims can add to the cost of health care. An article (M. Freudenheim, "The Check Is Not in the Mail," The New York Times, May 25, 2006, pp. C1, C6) reported that for one insurance company, 85.1% of the claims …
9. statistics

According to the book Are you Normal?,40% of all US adults try to pad their auto insurance claims to cover their deductible. Your office has just received 128 in insurance claims to be processed in the next few days, what is the probability
10. statistics

According to the book Are you Normal?,40% of all US adults try to pad their auto insurance claims to cover their deductible. Your office has just received 128 in insurance claims to be processed in the next few days, what is the probability

More Similar Questions