Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. basic math
  3. 10.21 how do ratings of tv and phone services comp

10.21 How do ratings of TV and phone services compare? File Telecom contains a rating of...

50.1K

Verified Solution

Question

Basic Math

10.21 How do ratings of TV and phone services compare? FileTelecom contains a rating of 13 different providers. a. At the 0.05level of significance, is there evidence of a difference in themean service rating between TV and phone services?

b. What assumption is necessary about the populationdistribution in order to perform this test?

c. Use a graphical method (show distribution, rejection andacceptance regions) to evaluate the validity of the assumption in(a).

d. Construct and interpret a 95% confidence interval estimate ofthe difference in the mean service rating between TV and phoneservices.

ProviderTVInternet
Verizon FIOS7171
AT&T U-verse7069
Cox Communicaitons6162
SuddenLink6366
Optimum6668
Comcast Xfinity5860
TimeWarner6062
Mediacom5658
Spectrum6365
Frontier Communications6056

Answer & Explanation Solved by verified expert
3.7 Ratings (361 Votes)
a hypothesis is thedifference between mean ratings of TV services and internetservices of a providernecessarycalculation beTV Internet717100817069136161621001636634416668212158602121606221215658212163652121605642401sum 9sum    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

find the radius of convergence and interval of convergence of the series ? n=1 ~ ?...

Basic Math
Q

calculate the mass defect and nuclear binding energy per nucleon (in mev) for c-16, a radioactive...

Chemistry
Q

Ron's Loan: Ron borrows $3,000,000 to purchase a warehouse. The annual interest rate on the loan...

Finance
Q

The answer and solutions are not given. Solve everything from a through f.   An automobile takes 9.89...

Physics
Q

Question 2: Derive Simpsons 1/3 rule as well as derive and estimate the truncation error of...

Advance Math
Q

If we study the vibration of a pipe open at both ends then the following...

Physics
Q

Lavage Rapide is a Canadian company that owns and operates a large automatic...

Accounting
Q

Suppose your company imports computer motherboards from Singapore. The exchange rate is currently 1.5128 S\$/USS....

Accounting
Q

At the beginning of 2019, Robotics Inc. acquired a manufacturing facility for $12.8 million. $9.8...

Accounting
Q

32) Which cost estimation method analyzes accounts in the subsidiary ledger as variable, fixed, or...

Accounting
Q

Pinder Co. produces and sells high-quality video equipment. To finance its operations, Pinder issued $22,000,000...

Accounting
Q

QUESTION 24 Davis Company is considering the purchase of a new piece of equipment that...

Accounting