Multiple Choice
A sample of a given size is used to construct a 95% confidence interval for the population mean with a known population standard deviation.If a bigger sample had been used instead,then the 95% confidence interval would have been _______ and the probability of making an error would have been ________.
A) Wider,smaller
B) Narrower,smaller
C) Wider,unchanged
D) Narrower,unchanged
Correct Answer:
Verified
Correct Answer:
Verified
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