A sample of 14 commuters in Chicago showed the average of the commuting times was 33.2 minutes.

Question:

A sample of 14 commuters in Chicago showed the average of the commuting times was 33.2 minutes. If the standard deviation was 8.3 minutes, find the 95% confidence interval of the true mean.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Elementary Statistics A Step By Step Approach

ISBN: 9780073386102

8th Edition

Authors: Allan Bluman

See More Books

Question Posted: Sep 02, 2015 04:00 AM

See More Questions

The Bendbo Corporation has a total of 300 employees in its two manufacturing locations and the headquarters office. A study conducted five years ago showed the average commuting distance to work for...
The Associated Press Team Marketing Report listed the Dallas Cowboys as the team with the highest ticket prices in the National Football League (USA Today, October 20, 2009). Data showing the average...
A state school administrator claims that the standard deviations of science assessment test scores for eighth-grade students are the same in Districts 1 and 2. A sample of 12 test scores from...
(a) Using the ion-pair equilibrium constant from Appendix J, with activity coefficients = 1, find the concentrations of species in 0.025 M MgSO 4 . Hydrolysis of the cation and anion near neutral pH...
Do you think clawbacks should be mandatory and, if so, what should they stipulate? Conduct an on-line search to get an idea of how many companies are requiring clawbacks in their proxy statements.
Consider the decision to purchase either a five-year corporate bond or a five-year municipal bond. The corporate bond is a 14% annual coupon bond with a par value of $1,000. It is currently yielding...
What does the variance tell us about data points?
Tarp Department Store is located in midtown Platteville. During the past several years, net income has been declining because of suburban shopping centers. At the end of the companys fiscal year on...
There are three main economic goals shared by countries around the world: growth, high employment, and price stability. Choose a country to examine further. Using reputable online resources, explain...
Ariana and Nicholas Peterson are about to construct their income and expense statement for the year ending December 31, 2020. They have put together the following income and expense information for...
A recent survey of 8 social networking sites has a mean of 13.1 million visitors for a specific month. The standard deviation was 4.1 million. Find the 95% confidence interval of the true mean.
For a sample of 24 operating rooms taken in the hospital study mentioned in Exercise 19 in Section 71, the mean noise level was 41.6 decibels, and the standard deviation was 7.5. Find the 95%...
Janet Ching, accountant of Portage Electronics Ltd., learned that Portage Electronics' $24 million cost of inventory at the end of last year was overstated by $3.6 million. She notified the company...
The variance of the predicted response in a linear regression model is a minimum at the average value of the predictor variable. a. True b. False
What is the most common form of analytical models?
The confidence interval on the mean response at a particular value of the predictor variable is always wider than the prediction interval on a new observation at the same point. a. True b. False
The entire process of project time management can be enhanced considerably by scheduling periodic job progress meetings. What is the objective of such a meeting, and who should participate?
What resources are the primary target of "resource management"?
Janice Creations, Inc. has the following data: Perform a vertical analysis of Janice Creations, Inc.s balance sheet for each year. JANICE CREATIONS, INC. Comparative Balance Sheet December 31, 2025...
Hotel Majestic is interested in estimating fixed and variable costs so that the company can make more accurate projections of costs and profit. The hotel is in a resort area that is particularly busy...
A statistics class was given a pretest on probability (since many had previous experience in some other class). Then the class was given a six-page review handout to study for two days. At the next...
Find p and q. a. X 1 = 6, n 1 = 15, X 2 = 9, n 2 = 15 b. X 1 = 21, n 1 = 100, X 2 = 43, n 2 = 150 c. X 1 = 20, n 1 = 80, X 2 = 65, n 2 = 120 d. X 1 = 15, n 1 = 50, X 2 = 3, n 2 = 12 e. X 1 = 24, n 1...
Teachers Salaries New York and Massachusetts lead the list of average teachers salaries. The New York average is $76,409 while teachers in Massachusetts make an average annual salary of $73,195....
World Tourism Day 2 0 1 7 , with its official celebration on September 2 7 in Qatar, was focused on sustainable tourism. Established by the United Nations World Tourism Organization ( UNWTO ) , World...
Tracy is single and had adjusted gross income of $35,800 in 2018. Tracy also has the following items: How much may Tracy claim as itemized deductions?
Calculate the geometric mean return of an investment with five year returns of 10%, (15%), 12%, 8% and (5%).

A sample of 14 commuters in Chicago showed the average of the commuting times was 33.2 minutes.

Question:

Step by Step Answer:

332...View the full answer

Elementary Statistics A Step By Step Approach

Students also viewed these Statistics questions