× Didn't find what you were looking for? Ask a question
  
  
Top Posters
Since Sunday
11
Z
9
7
E
7
s
6
m
6
M
6
a
6
K
6
l
5
k
5
N
5
New Topic  
NERD NERD
wrote...
Posts: 805
Rep: 0 0
3 years ago
A grocery store has an average sales of 8000 per day. The store introduced several advertising campaigns in order to increase sales. To determine whether or not the advertising campaigns have been effective in increasing sales, a sample of 64 days of sales was selected. It was found that the average was 8300 per day. From past information, it is known that the standard deviation of the population is 1200 . The p-value is
 a. 2.000.
  b. .9772.
  c. .0228.
  d. .5475.
Read 30 times
1 Reply
Replies
Answer verified by a subject expert
KojicoKojico
wrote...
Top Poster
Posts: 1145
Rep: 5 0
3 years ago
Sign in or Sign up in seconds to unlock everything for free
c
1

Related Topics

wrote...
Posts: 805
Credits: 110

3 years ago
Brilliant
wrote...
Posts: 120
Credits: 125

Yesterday
Thanks
wrote...
Posts: 152
Credits: 175

2 hours ago
Thanks for your help!!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  176 People Browsing
 295 Signed Up Today
Your Opinion
What's your favorite coffee beverage?
Votes: 209

Related Images
 1528
 540
 160