To construct a mean chart when we do not know the mean of the population,we ______.
A)can take the average of all sample mean
B)can make an educated guess
C)can take a larger sample
D)cannot construct the mean chart

Question

Quizplus · Accepted Answer

We can construct a mean chart by taking the average of all the sample means. This is because the sample means will be an estimate of the population mean, and taking the average of all sample means will provide us with a more accurate estimate. Therefore, option A is the best choice. Option B is not a reliable method as it involves subjective speculation, option C may not always be feasible depending on the circumstances, and option D is not true as we can still construct a mean chart using the sample means.

To Construct a Mean Chart When We Do Not Know