What is the margin of error, Basic Statistics

Assignment Help:

The National Quality Research Center at the University of Michigan provides a quarterly measure of consumer opinions about products and services (The Wall Street Journal, February 18, 2003). A survey of 10 restaurants in the Fast Food/Pizza group showed a sample mean customer satisfaction index of 71. Past data indicate that the population standard deviation of the index has been relatively

stable with σ = 5

a. What assumption should the researcher be willing to make if a margin of error is desired?

b. Using 95% confidence, what is the margin of error?

c. What is the margin of error if 99% confidence is desired?

 


Related Discussions:- What is the margin of error

Descriptive analysis , All Excel output should be copied into a single Word...

All Excel output should be copied into a single Word document where you must enter all of your responses to the questions below. Format the document professionally so it flows well

Iasb and fasb, Significant factors of financial accounting In financial...

Significant factors of financial accounting In financial accounting, The IASB and FASB considered that reconsidering all the ideas would not be a practical use of their underst

Management accounting, Defination,Advantages and Limitation, Proper Managem...

Defination,Advantages and Limitation, Proper Management of company,

Explain accounting Accumulated depreciation , A contra-asset assessment con...

A contra-asset assessment consideration used to history the buildup of regular credit created to indicate the conclusion of the approximated useful life of investment resources.

Cost accounting, what is the relationship of cost accounting to financial a...

what is the relationship of cost accounting to financial and management accounting?

Marginal and absorption costing, the guinegog is a trader in portable cd-ma...

the guinegog is a trader in portable cd-man. His budgeted output is 5000 units per quarter. The following data was available for the year 1998: Direct labour @ $6 Direct material @

Logistic regression model, Model 1:  Let's consider the logistic regression...

Model 1:  Let's consider the logistic regression model, which we will refer to as Model 1, given by log(pi / [1-pi]) = 0.25 + 0.32*X1 + 0.70*X2 + 0.50*X3

Econometrics , Use the data in the BWGHT.txt for this question. The variabl...

Use the data in the BWGHT.txt for this question. The variable descriptions are given in the file BWGHT_variables.txt. There are 1388 observations in this dataset. (a) Run the regre

Accounting standards in canada, Accounting Standards in  Canada:  : In...

Accounting Standards in  Canada:  : In 2005, the Accounting Standards Board in Canada promoted the use of IFRS over the use of GAAP. The companies of Canada are supposed to ad

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd