Multiple Choice
You have constructed a 95% confidence interval to estimate the mean number of people downloading music files from the internet using a sample of 150 people.Which of the following statements are true?
I.A 95% Confidence interval will be wider than a 99% confidence interval.
II.Sampling a smaller number of people will increase the margin of error.
III.Changing the sample size will change the value of 
.
A) I,II,III
B) I,II
C) I
D) II
E) II,III
Correct Answer:
Verified
Correct Answer:
Verified
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