We can reduce the margin of error in an interval estimate of p by doing any of the aforementioned except using a planning value closer to 0.5. Therefore, the correct answer option is: B) using a planning value closer to 0.5.
In Mathematics and Statistics, a confidence interval is also referred to as level of confidence and it can be defined as a range of estimated values that defines the probability that a population parameter would fall or lie within it.
In Mathematics, the margin of error (MOE) can be defined as a measure of the difference that exist between an observed value and a true value of the population parameter.
This ultimately implies that, the margin of error (MOE) can be used to determine the confidence interval. Additionally, the margin of error (MOE) can be reduced in a confidence interval estimate of p by increasing the sample size or the level of significance.
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Complete Question:
We can reduce the margin of error in an interval estimate of p by doing any of the following except _____.
A) increasing the sample size.
B) using a planning value closer to 0.5.
C) increasing the level of significance.
D) reducing the confidence coefficient.
