Top Posters
Since Sunday
y
2
s
2
a
1
w
1
w
1
i
1
m
1
s
1
c
1
k
1
1
m
1
Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
New Topic  
deroth deroth
wrote...
Go to Answer
Posts: 129
Rep: 0 0
A year ago
Patrons at a local batting cage complain that a pitching machine set to throw 80 mph is throwing too slowly. A random sample of 29 pitches from the machine yields an average speed of 79.25 mph with a standard deviation of 4.22 mph. Perform a hypothesis test to see if the average speed of this machine is less than 80 mph. Select the appropriate critical value (CV), test statistic (TS), and decision, and listH0. (Useα= 0.01.)


▸

CV = –2.4671; TS = –0.96; fail to rejectH0t: the machine throws at less than 80 mph



▸

CV = –1.3125; TS = –0.82; fail to rejectH0: the machine throws at less than 80 mph



▸

CV = –2.2671; TS = –0.18; fail to rejectH0: the machine throws at less than 80 mph



▸

CV = –2.4671; TS = –0.96; fail to rejectH0: the machine throws at 80 mph

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
Author:
Read 57 times
1 Reply
Replies
Answer verified by a subject expert
apontea13apontea13
wrote...
#1
Posts: 157
Rep: 1 0
A year ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

deroth Author
wrote...

A year ago
Thank you, thank you, thank you!
smi3
wrote...

Yesterday
You make an excellent tutor!
nicolepope23
wrote...

2 hours ago
Just got PERFECT on my quiz
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1082 People Browsing
 173 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 4464
  
 588
  
 797
Your Opinion
Where do you get your textbooks?
Votes: 447
Previous poll results: What percentage of nature vs. nurture dictates human intelligence?