Compute the 95 confidence interval on the population mean, Ask an Expert

Statistics

1. Compute the 95% confidence interval on the population mean if a sample of 1000 is taken and the sample mean is found to be 15.95 and standard deviation is 4.2.

Interpret the interval. What does it mean?

2. Test to see if a population mean is greater than the assumed (or historical) value of 16. When a sample of 1000 was taken the sample mean was computed to be 15.95 and the sample standard deviation was 4.2.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9376052

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

A political researcher wants to determine if there is an

A political researcher wants to determine if there is an association between gender (male, female) and political party affiliation (Democrat, Republican, Independent). What type of statistical test should be used?

Lets pretend that in a hospital 7nbspof patients

Let's pretend that in a hospital, 7% of patients are "high-risk" while the others are "lower-risk". For patients that are high-risk, 75% will be re-admitted within 30 days. For "lower-risk" patients, the 30day re-admitta ...

What can a continuum of elements in terms of strategic

What can a continuum of elements in terms of strategic planning mean to performance to small-medium enterprises?

The commissioner of the state police is reported as saying

The commissioner of the state police is reported as saying that about 10% of reported auto thefts involve owners whose cars haven't really been stolen. What null and alternative hypotheses would be appropriate in evaluat ...

The service manager for anbspcar dealership reviewed sales

The service manager for a car dealership reviewed sales records of the past 25 sales of new cars to determine the number of warranty repairs he will be called on to perform in the next 90 days. Corporate reports indicate ...

Alphonse contributes 542 per year at the end of each year

Alphonse contributes $542 per year at the end of each year to his pension plan. Assuming he can earn 6.62 per year from his plan, what is the total valve of his account at the end of 7 years?

Given the probability distribution functionx 0 1

Given the probability distribution function: x 0 1 2 Probability 0.25 0.50 0.25 a. Graph the probability distribution function. b. Calculate and graph the cumulative probability distribution. c. Find the mean of the rand ...

Explain how the company newmans own brand fulfills the

Explain how the company Newman's Own brand fulfills the definition of a business for profit and a non-profit business at the same time. Consider in the response the functions of business, entrepreneurship and production ...

Assume that showing a car is a bernoulli trial and each

Assume that showing a car is a Bernoulli trial, and each time she shows a car, there is a probability of 0.15 that the customer will buy the car. The saleswoman has a goal of selling at least one car a week. 1) How many ...

Thanks for starting our discussion on cash management if

Thanks for starting our discussion on Cash Management. If you think about it this comes down to speeding up collections of cash or slowing down disbursements of cash. Point out some strategies to accomplish it? Give refe ...

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