# Proportions

According to accountemps inc. 48% of all executives believe that employees are most productive on Tuesdays. a random sample of 200 executives is taken for a study.

a. what is the shape, mean, and standard deviation of the sampling distribution of the sample proportion for samples of 200?

b. what is the probability that the sample proportion of executives that believe Tuesdays are most productive s within 2% of the population proportion?

Â© BrainMass Inc. brainmass.com December 24, 2021, 10:05 pm ad1c9bdddfhttps://brainmass.com/statistics/probability/proportions-441213

#### Solution Preview

Please see the attached Excel File:

According to accountemps inc. 48% of all executives believe that employees are most productive on Tuesdays. a random sample of 200 executives is taken for a study.

a. what is the shape, mean, and standard deviation of the sampling distribution of the sample proportion for samples of 200?

Sampling distribution of proportion can be approximated by a normal distribution.

Mean of the sampling distribution of ...

#### Solution Summary

Calculates probability for sample proportions.