× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
o
5
4
m
4
b
4
x
4
a
4
l
4
t
4
S
4
m
3
s
3
New Topic  
KAtlold KAtlold
wrote...
Posts: 752
Rep: 0 0
6 years ago
A sample of 196 bags of sugar produced by Domain sugar producers showed an average of 2 pounds and 2 ounces with a standard deviation of 7 ounces.
 a. At 95 confidence, compute the margin of error and explain what it shows.
  b. Determine a 95 confidence interval for the population mean weight of bags of sugar produced by the company. Give the answer in ounces and at least two significant digits.
  c. Each bag of sugar produced is supposed to contain 2 pounds of sugar, but the company allows 2 higher or lower than the 2 pounds. Have they reached their desired goal? Explain why or why not by giving numerical facts.
Read 195 times
2 Replies

Related Topics

Replies
nic
wrote...
6 years ago
a . .98; it shows that 95 of all sample mean weights of sugar bags obtained using a sample size of 196 will be within 0.98 of the population mean weight.
b. 33.02 to 34.98 ounces
c. No, the margin of error, .98, is larger than the allowable margin of (.02)(32) = .64.
KAtlold Author
wrote...
6 years ago
tremendous help
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  860 People Browsing
 106 Signed Up Today
Related Images
  
 249
  
 1567
  
 225
Your Opinion
Where do you get your textbooks?
Votes: 284

Previous poll results: What's your favorite math subject?