Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
An internal report issued by the marketing manager of a oil-change franchise claims that the mean number of miles between oil changes is for franchise customers is at least 3600 miles. One franchise owner suspects that the mean distance is actually less than 3600 miles. She collects a random sample of 10 customers, and determines the distance each had driven between oil changes. She finds the following results.
3655 3734 3700 1946 3208
3311 2789 3920 3555 3902
a) Construct a stem-and-leaf diagram.
b) Does your stem-and-leaf diagram in (a) suggest that the distribution of distances is not normal? (For instance, is there any evidence that the distribution is skewed?)
c) Construct TWO 99% confidence intervals.
(i) Use the z-tables.
(ii) Use the t-tables.
d) Interpret your result in (ii) in words.
e) You now must decide: is the mean distance between oil changes 3600 miles, or not? Explain your reasoning.
f) Which (if either) of the confidence intervals in (c) is appropriate? (Suggestion: look at your answer to (b).) Explain briefly.
CBT has agreed to finance the needs of a stereo wholesaler for the next month. To complete the loan agreement, the wholesaler must estimate the cash on hand during the first 90 day
Employee portion of Medicare tax Medical health insurance tax is also taken out from a worker's wage or income and is equaled by participation from the company. In other terms,
what are the funtions of quantitative techniques
Capital projects funds Capital projects funds are used to account for the acquisition &/or structure of major capital facilities [other than those financed by proprietary funds &
What are cost drivers?
Manchester Custom Fabricating Company uses a job order system. At the beginning of May, Manchester had two jobs in process, Job #22 (DM = $600 and DL = $780), and Job #23 (DM = $75
Binding studies were carried out in which heparin was immobilized on the surface of cuvettes. The pH dependence of HPRG binding to heparin was investigated and the results are show
Three major Accounts and their Rules There are three major Records which are a) Personal Accounts b) Real Accounts c) Moderate Accounts Rule for Personal Account: Ch
Tchebycheffs theorem As we all know standard deviation is a most widely used measure of variation. It has certain mathematical properties that facilitate development of statistica
Advantages of sampling over population
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd