If the desired level of confidence to estimate a mean is increased from 90% (with z = 1.60)to 95%,the sample size is increased by a factor of ____,all else equal.
A)2.50
B)4.65
C)Has no effect on sample size.
D)1.56
E)2.00

Name: If the desired level of confidence to estimate a mean is increased from 90% (with z = 1.60)to 95%,the sample size is increased by a factor of ____,all else equal. A)2.50 B)4.65 C)Has no effect on sample size. D)1.56 E)2.00
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The Answer is D

If the Desired Level of Confidence to Estimate a Mean