A study reports that 75 percent of young adults in a county get their news from online sources. A sociologist believes that the percentage is actually greater than 75 percent. The sociologist will select a random sample of young adults from around the county to interview. Which of the following is the most appropriate method for investigating the sociologist’s belief?
A. A one-sample zz-test for a difference in population proportions
B. A one-sample zz-test for a sample proportion
C. A one-sample zz-test for a population proportion
D. A two-sample zz-test for a difference in population proportions
E. A two-sample zz-test for a difference in sample proportions

Question

11-04-2020
Mathematics

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A study reports that 75 percent of young adults in a county get their news from online sources. A sociologist believes that the percentage is actually greater than 75 percent. The sociologist will select a random sample of young adults from around the county to interview. Which of the following is the most appropriate method for investigating the sociologist’s belief?
A. A one-sample zz-test for a difference in population proportions
B. A one-sample zz-test for a sample proportion
C. A one-sample zz-test for a population proportion
D. A two-sample zz-test for a difference in population proportions
E. A two-sample zz-test for a difference in sample proportions

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carolinecsci carolinecsci · Answer 1 · 2020-05-01T02:59:36+02:00

carolinecsci carolinecsci

01-05-2020

Answer:

C. A one-sample z-test for population proportion

Step-by-step explanation:

You only need one sample to compare to the null hypothesis and to determine z.

It will be for population propotion because were are trying find evidence for the population not just the sample.

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shristiparmar1221 shristiparmar1221 · Answer 2 · 2021-12-06T11:11:18+01:00

This question is based on zz-test. Thus, the correct option is C, one-sample zz-test for a population proportion.

Given:

A study reports that 75 percent of young adults in a county get their news from online sources.

A sociologist believes that the percentage is actually greater than 75 percent.

We need to opt the most appropriate method for investigating the sociologist’s belief.

As per given in question we only need, one sample to compare to the null hypothesis and to determine z.

In this test, the one sample proportion test is used to estimate the proportion of a population.

It compares the proportion to a target or reference value and also calculates a range of values that is likely to include the population proportion. This is also called hypothesis of inequality.

Thus, the correct option is C, one-sample zz-test for a population proportion.

For more details,please prefer this link;

https://brainly.com/question/15875603