A Researcher Determined the Size Sample Necessary to Estimate Two

Multiple Choice

A researcher determined the size sample necessary to estimate two population means Y and Z.The indicated sizes were 200 to estimate Y and 300 to estimate Z with the specified degrees of confidence and precision.The researcher decided therefore to use a sample of size 250.Assuming the estimates of the population standard deviation were correct

A) the estimate of Y is more precise than desired while that for Z is less precise than desired.
B) the estimate of Y is less precise than desired while that for Z is more precise than desired.
C) Y is estimated with exactly the specified degree of precision while Z is estimated less precisely than desired.
D) Z is estimated with exactly the specified degree of precision while Y is estimated less precisely than desired.
E) Both Y and Z are estimated with the exact specified degree of precision.