× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
Home Q & A Board Science-Related Homework Help Mathematics
New Topic  
Acostak1 Acostak1
wrote...
Go to Answer
Posts: 842
Rep: 0 0
6 years ago
A random sample of 100 credit sales in a department store showed an average sale of 120.00 . From past data, it is known that the standard deviation of the population is 40.00.
 a. Determine the standard error of the mean.
  b. With a .95 probability, determine the margin of error.
  c. What is the 95 confidence interval of the population mean?
Read 136 times
7 Replies
Replies
Answer verified by a subject expert
somedaysundaysomedaysunday
wrote...
#1
Top Poster
Posts: 1170
Rep: 6 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free

Related Topics

wrote...
#2
3 years ago
Thanks
wrote...
#3
3 years ago
Thanks.
wrote...
#4
3 years ago
thanks
wrote...
#5
3 years ago
Thank you
wrote...
#6
3 years ago
ty
wrote...
#7
3 years ago
thank you
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1294 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 174
  
 903
  
 796
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 431
Previous poll results: What's your favorite coffee beverage?