Question

In a variables sampling application, what will result when the confidence level is changed from 90?

1) Sample size will increase.
2) Nonsampling error will decrease.
3) Point estimate of the arithmetic mean will increase.
4) Standard error of the mean will not be affected.

Answer 1

When the confidence level is changed from 90% in a variables sampling application, the sample size will not increase, the nonsampling error will not decrease, the point estimate of the arithmetic mean will not increase, and the standard error of the mean will not be affected.

Step-by-step explanation:

When the confidence level is changed from 90%, the following results can be expected:

1. The sample size will not increase. Changing the confidence level does not directly impact the sample size in a variables sampling application.
2. The nonsampling error, which is the error caused by factors other than sampling variability, will not decrease. The confidence level does not affect the nonsampling error.
3. The point estimate of the arithmetic mean will not increase. The confidence level does not influence the point estimate.
4. The standard error of the mean will not be affected. The confidence level does not change the standard error of the mean.