Top Posters
Since Sunday
14
s
5
j
4
s
4
C
3
W
3
a
3
H
3
s
3
a
3
o
3
K
3
New Topic  
johndoris johndoris
wrote...
Posts: 78
Rep: 0 0
A month ago
The target grade distribution for a particular course is 10% A, 30% B, 40% C, 15% D, 5% F. Students complain that a particular professor who teaches this course grades “too hard.” The present students survey 250 former students of this professor’s class and then do aχ2 goodness-of-fit test to see if the data provide sufficient evidence to support their complaint. They find a critical value of 14.7 and a test statistic of 9.8, withα= 0.10. What is the take-away conclusion from this survey?


The professor’s grades do not conform to the target.



The professor’s grades conform to the target.



There is not sufficient statistical evidence to reject the idea that the professor’s grades conform to the target.



There is sufficient statistical evidence to reject the idea that the professor’s grades conform to the target.

Textbook 

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
Author:
Read 6 times
1 Reply
Replies
Answer verified by a subject expert
JehanzaibJehanzaib
wrote...
Posts: 56
Rep: 1 0
A month ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here

There is not sufficient statistical evidence to reject the idea that the professor’s grades conform to the target.



1

Related Topics

johndoris Author
wrote...

A month ago
Good timing, thanks!
wrote...

Yesterday
Brilliant
wrote...

2 hours ago
Thanks
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  336 People Browsing
 354 Signed Up Today
Related Images
  
 676
  
 245
  
 182
Your Opinion
What's your favorite coffee beverage?
Votes: 257

Previous poll results: How often do you eat-out per week?