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Chapter 1: Q.34 (page 52)

Is a sample size of 1,000 a reliable measure for a population of 5,000?

Short Answer

Expert verified

Yes, for a population of 5000, a sample size of 1000 is a reliable metric.

Step by step solution

01

Sep 1: Definition

The term "reliability" refers to the instrument's capacity to produce consistent findings across several trials. The amount to which the instrument measures what it was supposed to measure is referred to as validity.

02

Explanation

A sample size of 10% of the population size is a credible measure of the population parameter when the population size is 5000. This means that a sample size of 500 people is a good estimate. Any sample with a size mom greater than 500 is also a trustworthy metric since it represents the genuine population better. Larger samples are more trustworthy.

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Most popular questions from this chapter

No replacement To use a binomial distribution to approximate the count of successes in an SRS, why do we require that the sample size nbe no more than 10%of the population sizeN?

Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves. Of interest is the average (mean) length of time in months patients live once they start the treatment. Two researchers each follow a different set of 40 patients with AIDS from the start of treatment until their deaths. The following data (in months) are collected.

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3; 4; 11; 15; 16; 17; 22; 44; 37; 16; 14; 24; 25; 15; 26; 27; 33; 29; 35; 44; 13; 21; 22; 10; 12; 8; 40; 32; 26; 27; 31; 34; 29; 17; 8; 24; 18; 47; 33; 34

Researcher B:

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