In each of Exercises, we have given a likely range for the observed value of a sample proportion p. a.Based on the given range, identify the educated guess that should be used for the observed value of ˆ p to calculate the required sample size for a prescribed confidence level and margin of error.b.Identify the observed values of the sample proportion that will yield a larger margin of error than the one specified if the educated guess is used for the sample-size computation. 0.7 or less

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.