Top Posters
Since Sunday
New Topic  
tarasen57 tarasen57
wrote...
Posts: 536
4 years ago
In 2010, the mean expenditure for auto insurance in a certain state was $806.  An insurance salesperson in this state believes that the mean expenditure for auto insurance is less today.  She obtains a simple random sample of 32 auto insurance policies and determines the mean expenditure to be $781 with a standard deviation of $39.13.  Is there enough evidence to support the claim that the mean expenditure for auto insurance is less than the 2010 amount at the α = 0.05 level of significance?
Textbook 
Statistics: Informed Decisions Using Data

Statistics: Informed Decisions Using Data


Edition: 5th
Author:
Read 140 times
1 Reply
Replies
Answer verified by a subject expert
jrhome1985!jrhome1985!
wrote...
Posts: 375
4 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

tarasen57 Author
wrote...

4 years ago
This helped my grade so much Perfect
wrote...

Yesterday
Thanks for your help!!
wrote...

2 hours ago
Smart ... Thanks!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1247 People Browsing
Related Images
  
 286
  
 2310
  
 649
Your Opinion
How often do you eat-out per week?
Votes: 79