31) To determine if the average sales per week for store A is greater than the average sales per week for store B you take sales data on 12 weeks from each store. You test the hypothesis Ho: MA S HB versus Ha: HA > HB and find a p-value of 0.62. To determine if the average sales per week depends on store, you wish to test the hypothesis Ho: MA = HB versus Ha: HA #MB. What is the p-value for this hypothesis test? A) 0.76 B) 0.38 C) 0.62 D) 0.31 E) 1.24
31) To determine if the average sales per week for store A is greater than the average sales per week for store B you take sales data on 12 weeks from each store. You test the hypothesis Ho: MA S HB versus Ha: HA > HB and find a p-value of 0.62. To determine if the average sales per week depends on store, you wish to test the hypothesis Ho: MA = HB versus Ha: HA #MB. What is the p-value for this hypothesis test? A) 0.76 B) 0.38 C) 0.62 D) 0.31 E) 1.24
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
HELP ASAP.
Transcribed Image Text:31) To determine if the average sales per week for store A is greater than the average
sales per week for store B you take sales data on 12 weeks from each store. You test
the hypothesis Ho:HA ≤ MB versus Ha: HA > HB and find a p-value of 0.62. To
determine if the average sales per week depends on store, you wish to test the
hypothesis Ho: A = HB versus H₂: MAHB. What is the p-value for this hypothesis
test?
A) 0.76
B) 0.38
C) 0.62
D) 0.31
E) 1.24
32) To determine if the proportion of undergraduate students who are left handed depends on
their class standing (Freshman, Sophomore, Junior or Senior) you identify the hypothesis
Ho: PFreshman = Psophomore = PJunior = Psenior
Ha: Not all population proportions are equal
To test the hypothesis you survey 180 students, records their class standing and ask them if they
are left handed (Yes or No). The data appears in the table below (Left Handed worksheet).
Left
Handed
Yes
No
Total
Freshman
4
26
30
Class Standing
Sophomore
6
44
50
Junior
5
35
40
Senior
6
54
60
Total
21
159
180
Using the sample data, you calculate a test statistic of 0.275. What is the p-value for
the hypothesis test?
A) 0.05 <p-value < 0.10
B) 0.025 <p-value < 0.05
C) 0.10 <p-value < 0.90
D) 0.95<p-value < 0.975
E) 0.90 <p-value < 0.95
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 1 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