Which of the following factors can influence the accuracy of a sample mean as an estimate of ì?
A)size of the sample
B)variance of population scores
C)both a and b
D)none of these

Question

Quizplus · Accepted Answer

Both the size of the sample and the variance of population scores can influence the accuracy of a sample mean as an estimate of ì. A larger sample size generally leads to a more accurate estimate of the population mean, while a higher variance in the population scores can lead to a less accurate estimate. Therefore, both factors should be taken into consideration when estimating ì based on a sample mean. Option D is incorrect because at least one of the factors (sample size) can influence the accuracy of the estimate.

Which of the Following Factors Can Influence the Accuracy of a Sample