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 Consumer Rating (last year) Rating (this year) conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f). 4 6 3 4 8 5 1 6. 8. 3 ww -wwp w ww yp Identify the rejection region. Choose the correct answer below. O A. t>1.895 YB. t< -2.365, t> 2.365 O C. t<-2.365 O D. t< -1.895, t> 1.895 (c) Calculate d and sg. d= 1.375 (Type an integer or a decimal.) Calculate sa S- 1.923 (Type an integer or a decimal. Round to three decimal places as needed.) (d) Use the t-test to find the standardized test statistic t. t= 2.022 (Type an integer or a decimal. Round to three decimal places as needed.) (e) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below. O Fail to reject the null hypothesis. O Reject the null hypothesis.
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 Consumer Rating (last year) Rating (this year) conclude that the ratings have changed? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (f). 4 6 3 4 8 5 1 6. 8. 3 ww -wwp w ww yp Identify the rejection region. Choose the correct answer below. O A. t>1.895 YB. t< -2.365, t> 2.365 O C. t<-2.365 O D. t< -1.895, t> 1.895 (c) Calculate d and sg. d= 1.375 (Type an integer or a decimal.) Calculate sa S- 1.923 (Type an integer or a decimal. Round to three decimal places as needed.) (d) Use the t-test to find the standardized test statistic t. t= 2.022 (Type an integer or a decimal. Round to three decimal places as needed.) (e) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below. O Fail to reject the null hypothesis. O Reject the null hypothesis.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
(e) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below.
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
Rating (last year)
Rating (this year)
1
3
4
6
6.
4
3
6
3
2
ww ww wwp ww
Identify the rejection region. Choose the correct answer below.
O A. t>1.895
B. t< -2.365, t> 2.365
O C. t< -2.365
O D. t< - 1.895, t>1.895
(c) Calculate d and s4.
d= 1.375
(Type an integer or a decimal.)
Calculate sa-
- 1.923
(Type an integer or a decimal. Round to three decimal places as needed.
(d) Use the t-test to find the standardized test statistic t.
t= 2.022
(Type an integer or a decimal. Round to three decimal places as needed.)
(e) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below.
O Fail to reject the null hypothesis.
O Reject the null hypothesis.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman