Top Posters
Since Sunday
9
T
8
D
8
t
7
j
7
m
7
m
7
l
6
g
6
Y
6
S
6
j
6
New Topic  
wrote...
Posts: 203
Rep: 8 0
3 weeks ago
A professor was curious about her students' grade point averages (GPAs). She took a random sample of 15 students and found a mean GPA of 3.01 with a standard deviation of 0.534. Which of the following formulas gives a 99% confidence interval for the mean GPA of the professor's students?

▸ 3.01 ± 2.576

▸ 3.01 ± 2.977

▸ 3.01 ± 2.947

▸ 3.01 ± 2.977

▸ 3.01 ± 2.947
Textbook 

Stats: Modeling the World


Edition: 4th
Authors:
Read 48 times
2 Replies
Replies
Answer verified by a subject expert
wrote...
Posts: 226
3 weeks ago
Sign in or Sign up in seconds to unlock everything.
3.01 ± 2.977
1

Related Topics

wrote...
3 weeks ago
Thanks for your help!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers.
Learn More
Improve Grades
Help Others
Save Time
Accessible 24/7
  142 People Browsing
 122 Signed Up Today
Your Opinion
What's your favorite coffee beverage?
Votes: 67

Related Images
 109
 168
 103