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A resrearcher is conducting a survey for...

A resrearcher is conducting a survey for which she currently has 93% confidence level. What would be two actions that she could take that would be most likely to increase the confidence level in her survey result?

A

Increase the sample size and modify the design of the survey to increase the standard deviation.

B

Increase the sample size and modify the design of the survey to decrease the standard deviation.

C

Decrease the sample size and increase the randomness of the survey sample.

D

Modify the design of the survey to increase the standard deviation and decrease the randomness of the survey sample.

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The correct Answer is:
B
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