Homework Help is Here – Start Your Trial Now!
Math
Statistics
A company wants to detemine whether its consumer product ratings (0-10) have changed from last year to this year. The table below shows the company's product ratings from eight consumers for last year and this year. At a=0.05, is there enough evidence to conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f). Consumer Rating (last year) Rating (this year) 1 3 4 5 8. 5 3 4 5. 3 1 4 3 6. 8. 3 2

A company wants to detemine whether its consumer product ratings (0-10) have changed from last year to this year. The table below shows the company's product ratings from eight consumers for last year and this year. At a=0.05, is there enough evidence to conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f). Consumer Rating (last year) Rating (this year) 1 3 4 5 8. 5 3 4 5. 3 1 4 3 6. 8. 3 2

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
100%
(c) Calculate d and sa
A company wants to determine whether its consumer product ratings (0-10) have changed from last year to this year. The table below shows the company's product ratings from eight consumers for last year and this year. At a = 0.05, is there enough evidence to conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f). Consumer 1 2 3 4 5 6 7 8 C Rating (last year) 6 5 3 4 5 8 5 5 Rating (this year) 3 1 4 3 6 8 3 2 CECCH The claim is "The product ratings have changed from last year to this year." Let Hd be the hypothesized mean of the ratings last year minus the ratings this year. State Ho and H₂. Choose the correct answer below. OA Ho: Hozd OB. Ho: Hd 20 Ha: Hd <0 ⒸC. Ho: Hd #0 H:Hd=0 Ha: Hd <d OD. Ho: Hd 50 E. Ho: Hd=0 H₂: Hd *0 OF. Ho: Hd Sd H₂: Had Ha: Hd 20 (b) Find the critical value(s) and identify the rejection region(s). to= -2.365,2.365 (Use a comma to separate answers as needed. Type an integer or a decimal. Round to three decimal places as needed.) Identify the rejection region. Choose the correct answer below. A. t>1.895 B. t< -2.365, t>2.365 C. t< -2.365 D. t< -1.895, t > 1.895 (c) Calculated and sd- d= (Type an integer or a decimal.)
Transcribed Image Text:A company wants to determine whether its consumer product ratings (0-10) have changed from last year to this year. The table below shows the company's product ratings from eight consumers for last year and this year. At a = 0.05, is there enough evidence to conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f). Consumer 1 2 3 4 5 6 7 8 C Rating (last year) 6 5 3 4 5 8 5 5 Rating (this year) 3 1 4 3 6 8 3 2 CECCH The claim is "The product ratings have changed from last year to this year." Let Hd be the hypothesized mean of the ratings last year minus the ratings this year. State Ho and H₂. Choose the correct answer below. OA Ho: Hozd OB. Ho: Hd 20 Ha: Hd <0 ⒸC. Ho: Hd #0 H:Hd=0 Ha: Hd <d OD. Ho: Hd 50 E. Ho: Hd=0 H₂: Hd *0 OF. Ho: Hd Sd H₂: Had Ha: Hd 20 (b) Find the critical value(s) and identify the rejection region(s). to= -2.365,2.365 (Use a comma to separate answers as needed. Type an integer or a decimal. Round to three decimal places as needed.) Identify the rejection region. Choose the correct answer below. A. t>1.895 B. t< -2.365, t>2.365 C. t< -2.365 D. t< -1.895, t > 1.895 (c) Calculated and sd- d= (Type an integer or a decimal.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS