A random Sample of 50 mathematics grades out of total of 200 showed a mean of 75 and a standard deviation of 10.
What are the 95% confidence limits for estimates of the mean of the 200 grades?
With what degree of confidence could we say that the mean of all 200 grades is (75±1)?
Answers
Answered by
0
Answer:
A random sample of 50 mathematics grades out of a total of 200 showed a mean of 75 and a standard deviation of 10.
(a) What are the 95% confidence limits for estimates of the mean of the 200 grades?
(b) With what degree of confidence could we say that the mean of all 200 grades is 75
Answered by
1
REFER THIS ATTACHMENT GIVE ABOVE
REFER THIS ATTACHMENT GIVE ABOVEPLZ MARK IT AS BRAINLIEST!!!
Attachments:
Similar questions