Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
New Topic  
blankship blankship
wrote...
Go to Answer
Posts: 129
Rep: 0 0
A year ago
Sales from a chain of computer stores are normally distributed, with an average monthly sales volume of $280,560. Estimating the amount of monthly variability in sales is of interest to help anticipate normal income fluctuations. A random sample of 8 months’ sales data yields a standard deviation of $10,423. What is a 98% confidence interval for the standard deviation of monthly sales volume?


▸

($172,694.71, $666,866.84)



▸

($6152.47, $21,491.21)



▸

($6123.96, $27,725.40)



▸

($6415.73, $24,774.57)

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
Author:
Read 34 times
1 Reply
Replies
Answer verified by a subject expert
apinaapina
wrote...
#1
Posts: 138
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

blankship Author
wrote...

A year ago
Thanks
sleinhi
wrote...

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

2 hours ago
this is exactly what I needed
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1281 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 980
  
 104
  
 285
Your Opinion
Which of the following is the best resource to supplement your studies:
Votes: 249
Previous poll results: Who will win the 2024 president election?