The number of people responding to a mailed information, Ask an Expert

Statistics

The number of people responding to a mailed information brochure on cruises of the Royal Viking Line through an agency in San Francisco is approximately normally distributed.

The agency found that 10% of the time, over 1,000 people respond immediately after a mailing, and 50% of the time, at least 650 people respond right after the mailing. Find the mean and the standard deviation of the number of people who respond following a mailing.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92181719

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

You are considering investing in a mutual fund the fund is

You are considering investing in a mutual fund. The fund is expected to earn a return of 15 percent in the next year. If its annual return is normally distributed with a standard deviation of 6.10 percent, what return ca ...

The probability that someone made a purchase at a store is

The probability that someone made a purchase at a store is 0.36. You randomly select 15 people who went to the store. The random variable x represents the number of people who made a purchase. a. Find the probability tha ...

A sample of 175 randomly selected students found that the

A sample of 175 randomly selected students, found that the proportion of students planning to travel home for thanksgiving is 0.64 What is the standard deviation of the sampling distribution.

A coin is randomly picked from a collection of 10 coins the

A coin is randomly picked from a collection of 10 coins, the ith coin having a probabiliity i/10 of coming up heads. The coin in then flipped repeatedly until a head appears. Let X be the number of flips necessary. Find ...

Mrs salmon agrees to repay a loan by paying 500 at the end

Mrs. Salmon agrees to repay a loan by paying $500 at the end of each month for 5 years. The first payment is due at the end of the 6th month from today and the remaining payments will continue for another 59 months. If t ...

Jane is an analyst and their company wants to get a return

Jane is an analyst and their company wants to get a return of atleast 7.3% compounded Semi-Annually on their investment. Jane will only have use of the money for 111 Months before the company needs it for another project ...

According to the national health interview survey 47 of us

According to the national health interview survey, 4.7% of U.S adults 50 and older have had a total knee replacement. A random sample of 20 adults 50 and older has been selected. Use the Poisson distribution to approxima ...

Question you are throwing a party and fill a bowl with 63

Question: You are throwing a party and fill a bowl with 63 ounces of punch. Suppose the expected size of each cup of punch is 2 ounces and the standard deviation of the size of a cup of punch is A ounce and each cup is p ...

Using excel a manufacturer of celsius thermometers claims

Using Excel, A manufacturer of Celsius thermometers claims the thermometers they produce have an average (mean) reading of 0 degrees Celsius and a standard deviation of 1 degree Celsius for freezing water . If one of the ...

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 ...

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