A researcher wishes to estimate the average number of minutes per day a person spends on the
Question:
A researcher wishes to estimate the average number of minutes per day a person spends on the Internet. How large a sample must she select if she wishes to be 90% confident that the population mean is within 10 minutes of the sample mean? Assume the population standard deviation is 42 minutes.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 85% (7 reviews)
n 693 2 48...View the full answer
Answered By
Joseph Mwaura
I have been teaching college students in various subjects for 9 years now. Besides, I have been tutoring online with several tutoring companies from 2010 to date. The 9 years of experience as a tutor has enabled me to develop multiple tutoring skills and see thousands of students excel in their education and in life after school which gives me much pleasure. I have assisted students in essay writing and in doing academic research and this has helped me be well versed with the various writing styles such as APA, MLA, Chicago/ Turabian, Harvard. I am always ready to handle work at any hour and in any way as students specify. In my tutoring journey, excellence has always been my guiding standard.
4.00+
1+ Reviews
10+ Question Solved
Related Book For
Elementary Statistics A Step By Step Approach
ISBN: 9781259755330
10th Edition
Authors: Allan G. Bluman
Question Posted:
Students also viewed these Mathematics questions
-
The Northwest Pacific Phone Company wishes to estimate the average number of minutes its customers spend on long-distance calls per month. The company wants the estimate made with 99% confidence and...
-
A researcher wishes to estimate the proportion of households that have broadband Internet access. What size sample should be obtained if she wishes the estimate to be within 0.03 with 99% condence if...
-
A leading manufacturer of exercise equipment wanted to collect data on the effectiveness of their equipment. An August 2001 article in the journal Medicine and Science in Sports and Exercise compared...
-
Aria Perfume, Inc.. sold 3,210 boxes of white musk soap during January of 2016 at the price of $90 per box. The company offers a full refund for any product returned within 30 days from the date of...
-
The adjusted trial balances of Allied Coatings, Inc., at October 31, 2016, and October 31, 2017, include these amounts: Analysis of the accounts at October 31, 2017, reveals these transactions for...
-
Several school districts have attempted to increase teacher productivity by paying teachers based on the scores their students achieve on standardized tests (administered by outside testing...
-
1. Can one person really understand all of the legal issues mentioned at the beginning of this chapter? For example, can a business executive know about insider trading and employment law and...
-
Instant Dinners, Inc. (IDI), is an established manufacturer of microwavable frozen foods. Leland Forrest is a member of the planning and analysis staff. Forrest has been asked by Bill Rolland, chief...
-
Beech Corporation is a merchandising company that is preparing amaster budget for the third quarter of the calendar year. Thecompany??s balance sheet as of June 30th is shown below: BeechCorporati 0...
-
Change Purse Inc. is a small business that is planned to be located in a small Nova Scotia town. The town was incorporated in 1889 and, like many communities in Nova Scotia, it prides itself on being...
-
How large a sample is needed to estimate the population mean for the amount of money a person spends on Christmas presents within $2 and be 95% confident? The standard deviation of the population is...
-
A pizza shop owner wishes to find the 95% confidence interval of the true mean cost of a large cheese pizza. How large should the sample be if she wishes to be accurate to within $0.15? A previous...
-
Ned Robinson, the manager of Lunenberg Times Inc., prepared the balance sheet of the company while the accountant was ill. The balance sheet contains numerous errors. In particular, the manager knew...
-
bcl (5) Let x = cost and = sint parametric equation be given. (a) [7pts.] Find the length of the parametric curve in the interval 0 tT 2 (b) [8pts.] Find an equation for the line tangent to the curve...
-
Select an industry or sector with which you are familiar or that you have worked for in the past. Identify the themed messages and message styles used in messages released by organizations in this...
-
17. Simplify: (-3)7 (-3)4 18. What percent of 0.14 is 0.035?
-
Math budget and tax #3 Assume the federal standard deduction is $6,300 and the federal personal exemption is $4,050. Single Taxable Income Brackets and Rates, 2017 Rate 10% Taxable Income Bracket 15%...
-
Quality is a word that has a nebulous meaning, because everyone seems to think they know what quality means yet most folks disagree.Think about how you would describe a quality car, coat, party,...
-
On January 2, 2018, Temptations Corporation paid $31,500 in cash and exchanged a chocolate mixing machine, which had a fair value of $437,500 and a book value of $500,000 ($1,135,000 historical cost...
-
Show, if u(x, y) and v(x, y) are harmonic functions, that u + v must be a harmonic function but that uv need not be a harmonic function. Is e"e" a harmonic function?
-
For Exercises identify the sampling method that To check the accuracy of a machine that is used for filling ice cream containers, every 20th bottle is selected and weighed.
-
For Exercises determine whether the data are discrete or continuous. Number of text messages sent in a month
-
For Exercises, determine whether descriptive or inferential statistics were used. In 2011, there were 34 deaths from the avian flu.
-
Swifty Journeys Music School provides private music lessons for elementary students. Its operating costs are as follows: Rent on facilities $2,000 per month Advertising $845 per month Instrument Rent...
-
Sandstorm Manufacturing Inc. makes two types of industrial component parts-the LE100 and the UL600. It annually produces 65,000 units of LE100 and 13,000 units of UL600.The company's conventional...
-
Sunland Toys' management is considering eliminating product A, which has been showing a loss for several years. The company's annual income statement, is as follows: A B C Total Sales $2,289,000...
Study smarter with the SolutionInn App