× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
c
5
j
5
a
5
L
5
f
5
j
5
D
4
k
4
y
4
t
4
h
4
l
4
Home Q & A Board Other Fields Homework Help Business
New Topic  
Hjratliff Hjratliff
wrote...
Go to Answer
Posts: 329
Rep: 0 0
6 years ago
A simple random sample of 43 elements has been selected from a population of size 800 . The sample mean is 500, and the sample standard deviation is 60 . An approximate 95 confidence interval for the population mean is _____.
 a. 482.2 to 517.8
  b. 440.0 to 560.0
  c. 500.0 to 560.0
  d. 440.0 to 500.0

Q. 2

If two data sets have the same standard deviation, they must have the same coefficient of variation.
  Indicate whether the statement is true or false

Q. 3

A simple random sample of 43 elements has been selected from a population of size 800 . The sample mean is 500, and the sample standard deviation is 60 . The standard error of the mean is _____.
 a. 9.2
  b. 43.0
  c. 1.6
  d. 8.9

Q. 4

The standard deviation is the positive square root of the variance.
  Indicate whether the statement is true or false

Q. 5

A simple random sample of size 64 is taken from a population of size 800 . The sample mean is determined to be 2,550 with a standard deviation of 500 . An estimate of the standard error of the mean (for the total) is
 a. 62,500.50
  b. 47,958.32
  c. 7.8125
  d. 50,000.00
Read 48 times
1 Reply
Replies
Answer verified by a subject expert
StudentWarriorStudentWarrior
wrote...
#1
Posts: 219
Rep: 0 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Hjratliff Author
wrote...

6 years ago
this is exactly what I needed
Ivansitospeed@g
wrote...

Yesterday
Good timing, thanks!
Tim0301
wrote...

2 hours ago
This helped my grade so much Perfect
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  891 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 262
  
 1186
  
 346
Your Opinion
Where do you get your textbooks?
Votes: 422
Previous poll results: Which 'study break' activity do you find most distracting?