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Construct a confidence interval of the population

Chapter 5, Problem 15AYU

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QUESTION:

Construct a confidence interval of the population proportion at the given level of confidence.

x = 30, n = 150, 90% confidence

Questions & Answers

QUESTION:

Construct a confidence interval of the population proportion at the given level of confidence.

x = 30, n = 150, 90% confidence

ANSWER:

Answer :

Step 1:

           Given values are

                        x = 30, n = 150, 90% confidence.

Here we need to construct a confidence interval of the population proportion at the given level of confidence.

      The formula for confidence interval of the population proportion is

              …….(1)

Where,p = population estimator

           = sample estimator

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