Welcome

The Highway Safety Department wants to study the driving habits of individuals. A sample of 121 cars traveling on the highway revealed an average speed of 60 miles per hour with a standard deviation of 11 miles per hour. Determine Lower Limit (LL) of 98.92% confidence interval estimate for the speed of all cars. (Please use 2 decimal places for the answer)

1) The Highway Safety Department wants to study the driving habits of individuals. A sample of 121 cars traveling on the highway revealed an average speed of 60 miles per hour with a standard deviation of 11 miles per hour. Determine Lower Limit (LL) of 98.92% confidence interval estimate for the speed of all cars.

2) The monthly starting salaries of students who receive an MBA degree have a population standard deviation of \$125. What size sample should be selected to obtain a 0.95 probability of estimating the mean monthly income within \$15 or less?

3)

Below you are given ages that were obtained by taking a random sample of 9 undergraduate students. Assume the population has a normal distribution.

 19 22 23 19 21 22 19 23 21

What is the Lower Limit of 98% confidence interval for the average age of undergraduate students.

Tired of numerous paper assignments?
Rely on us and receive professional paper writing assistance!

Who We Are

We are a professional website for customized writing. If you searched a question and stumbled into our website, you are in the right place to receive assistance with your coursework.

Do you handle any type of coursework?

Yes. We have displayed prior orders to demonstrate our experience. We can answer this question for you as we have previously. Please fill out our Order Form so that we may ensure its flawlessness. Correctly completing the order form will help our staff with reference, requirements, and future communication.

Is it hard to Place an Order?

1. Click on the “Order Now” tab at the top menu or “GET A FREE QUOTE” icon at the bottom and a new page will appear with an order form to be filled
2. Fill in the initial requirements in the small order form located on the home page and press “continue” button to proceed to the main order form or press “order” button in the header menu. Starting from there let our system intuitively guide you through all steps of ordering process. Submit detailed paper instructions, upload necessary files if needed and provide your contact information – you are almost done!
3. Proceed with the payment- click on “PROCEED TO CHECKOUT” at the bottom of the page. From there, the payment sections will show, follow the guided payment process and your order will be available for our writing team to work on it. All your payments are processed securely through PayPal. This enables us to guarantee a 100% security of your funds and process payments swiftly.