A survey research company uses random digit dialing. They have a contract, to es

Question

A survey research company uses random digit dialing. They have a contract, to estimate the percentage of people watching Spanish language television and several South-Western Cities. They took a sample of size 1000 in Austin Texas which has had about 600,000 residents. They are satisfied with the accuracy of the estimates for Austin Dallas has about twice the population of Austin, but similar demographics.

To get about the same accuracy in Dallas as an Austin, the company should use a sample size of 2000 select true or false and why:
A. true
B. false
C. Accuracy in estimated percentages depends mainly on the sample size.
D. Accuracy on estimated percentages depends mainly on the population size.

Explanation / Answer

Option-A

Option-C

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