Compute the 95 confidence interval for the percent of, Ask an Expert

Statistics

A marketing research firm wishes to estimate the percent of homeowners who are dissatisfied with their present homeowner's insurance policy. A simple random sample of 400 homeowners led to 80 who were dissatisfied with their homeowner's insurance policy.

a. Compute the 95% confidence interval for the percent of homeowners who are dissatisfied with their homeowner's insurance policy.

b. Interpret this confidence interval.

c. How large a sample size will need to be selected if we wish to have a 95% confidence interval that is accurate to within 1%.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9108062

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

We toss n coins and each toss shows heads with probability

We toss n coins, and each toss shows heads with probability p, independently of each of the others. Each coin which shows heads is tossed again. What is the distribution function of the number of heads resulting from the ...

The number of phone calls that arrive at a phone exchange

The number of phone calls that arrive at a phone exchange is often modeled as a Poisson random variable. Assume that on average there are 7 calls per hour. Show all work. a) Find the probability that there are exactly f ...

The recent poll revealed that 68 out of 98 men and 45 out

The recent Poll revealed that 68 out of 98 men and 45 out of 85 women expressed "at least some support" for a new municipal policy. At the 5% significance level, does the proportion of Supporting the policy differ from t ...

What is the probability of a value from a normal

What is the probability of a value from a normal distribution being between 0.75 standard deviations above the mean and 1.75 standard deviations below the mean? (Round calculations to nearest thousandth (3 digits))

Determine the type of distribution for the following

Determine the type of distribution for the following situation: Draw marbles from a bag which contains 5 red marbles, 6 blue marbles and 4 green marbles with replacement until you get a blue marble. a) Binomial b) Pois ...

The weights of ice cream cartons are normally distributed

The weights of ice cream cartons are normally distributed with a mean weight of 20 ounces and a standard deviation of 0.5 ounces. You randomly select 25 cartons. What is the probability that their mean weight is greater ...

Sharon recently invested in real estate with the intention

Sharon recently invested in real estate with the intention of selling the property one year from today. She has modeled the returns on that investment based on three economic scenarios. She believes that if the economy s ...

While preparing for their comeback tour the flaming rogers

While preparing for their comeback tour, the flaming Roger's find that the average time it takes their sound tech to set up for a show is 61 minutes, with a standard deviation of 4.1 minutes. If the band manager decides ...

The following data represents rain fall x and yield of

The following data represents rain fall (x) and yield of paddy per hectare (y) in a particular area. X 113 102 95 120 140 130 125 Y 1.8 1.5 1.3 1.9 1.1 2.0 1.7 Fit the regression equation x and y. Estimate Y when x= 145. ...

Ganad and equity risk premiumsnbspmarianbspgonzalez ganados

Ganad and Equity Risk Premiums. Maria? Gonzalez, Ganado's Chief Financial? Officer, estimates the? risk-free rate to be 3.70 %, the? company's credit risk premium is 4.00%, the domestic beta is estimated at 0.93?, the i ...

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