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A sample has a sample proportion of 0.3. Which sample size will produce thewidest 95% confidence interval when estimating the population parameter?

A sample has a sample proportion of 0.3. Which sample size will produce thewidest-example-1
User Friol
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2 Answers

7 votes

Answer:c

Step-by-step explanation: i did the test

User Jpolete
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6.2k points
3 votes

Given:

A sample has a sample proportion of 0.3.

Required:

Which sample size will produce the widest 95% confidence interval when estimating the population parameter.

Step-by-step explanation:

What are population and sample?

It is described as a collection of data with the same entity that is linked to a problem. The sample is a subset of the population, yet it is still a part of it.

We have:

A sample has a sample proportion of 0.3.

Level of confidence = 95%

At the same confidence level, the larger the sample size, the narrower the confidence interval.

As we have a 95% confidence interval the sample size should be lower.

The sample size from the option = 40 (lower value).

Answer:

Thus, the sample size of 40 will produce the widest 95% confidence interval when estimating the population parameter option (b) is correct.

User Mark Rowlands
by
6.4k points
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