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4) Which of the following is a FALSE statement regarding the calculation of confidence intervals? Group...

4)

Which of the following is a FALSE statement regarding the calculation of confidence intervals?

Group of answer choices

You can utilize the sample proportion to estimate the standard error.

You need to verify that the conditions for the use of the normal model are met.

You need a prior estimate of the population proportion to calculate the standard error.

Increasing the level of confidence will increase the width of the confidence interval.

Math   Statistics-And-Probability   
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Answer #1

Among the given statements, the statement, " You need a prior estimate of the population proportion to calculate the standard error " is false because the standard error is based on the sample proportion.

All the other three statements are true regarding the calculation of confidence interval because all the conditions of normal distribution should be verified, a sample proportion should be known for standard error and width of the confidence interval increase with increase in the confidence level.

The basic formula for confidence interval of proportion is,

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