By how many times does the sample size have to be increased to decrease the margin of
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Question:
The sample size must be increased by a factor of ___?__ to decrease the margin of error by a factor of 1/7.
What is the general relationship, if any, between the sample size and the margin of error?
MULTIPLE CHOICE
A. Increasing the sample size by a factor M results in the margin of error decreasing by a factor of 1/M.
B. Increasing the sample size by a factor M results in the margin of error decreasing by a factor of 1/M2.
C. Increasing the sample size by a factor M results in the margin of error decreasing by a factor of 1/ square root M
D. There is no relationship between the sample size and the margin of error.
Expert Answer:
ANSWER C Increasing the sample size by a factor M results in the margin of error decreasing ... View the full answer
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