Question a bank sampled its customers to determine the, Ask an Expert

Statistics

Question: A bank sampled its customers to determine the proportion of customers who use their debit card at least once each month. A sample of 50 customers found that only 12 use their debit card monthly. Find 95% and 99% confidence intervals for the proportion of customers who use their debit card monthly. Use the appropriate formula and verify your result using the Confidence Intervals workbook.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92247542

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

A single person with a monthly taxable income of 2800 in

A single person with a monthly taxable income of $2800 in the 15% federal marginal bracket, has a state tax rate of 7.95% and social security taxes at 6.2%. This person forgoes consumption and instead places $230 into a ...

A clinical psychologist is the primary therapist for 18

A clinical psychologist is the primary therapist for 18 patients. She randomly selects a sample of 3 patients to be in her study. How many different samples of this size can be selected from this population of 18 patient ...

The table below shows the results of a survey that asked

The table below shows the results of a survey that asked 2873 people whether they are involved in any type of charity work. A person is selected random from the sample. Frequently Occasionally Not at All Total Male 225 4 ...

A recent survey of college seniors evaluated how the

A recent survey of college seniors evaluated how the students view the "real world" that they are about to enter. One question asked the seniors to evaluate the future job market on a 10-point scale from 1 (dismal) to 10 ...

According to a study in a previous year 570 of households

According to a study in a previous year, 57.0% of households nationwide used natural gas for heating during a year. Recently, a survey of 2,700 randomly selected households showed that 58.0% used natural gas. Use a 0.05 ...

You are promised 80 a year for the next 4 years you are

You are promised $80 a year for the next 4 years. You are also promised a one-time payment of $2000 in 6 years. The interest rate is 6%. What is the total PV?

Bob is interested in studying whether the average household

Bob is interested in studying whether the average household income in city A is lower than the national benchmark, μ 0 = $51,500. He collects income information from a random sample of 100 households, conducts a one-sam ...

The length of time a person takes to decide which shoes to

The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a standard deviation of 1.90. Find the probability that a randomly selected individual will take ...

In a sample of 41 temperature readings taken from the

In a sample of 41 temperature readings taken from the freezer of a restaurant, the mean is 29.7 degrees and the standard deviation is 2.7 degrees. What would be the 80% confidence interval for the temperatures in the fre ...

Recent test scores on the law school admission test lsat

Recent test scores on the Law School Admission Test (LSAT) are normally distributed with a mean of 162.4 and a standard deviation of 15.9. What is the probability that the mean of 12 randomly selected scores is less than ...

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