Calculation Of Standard Deviation And Chebyshev’s Theorem Application

Question

1. According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an average of 413 minutes a day on the job. Suppose the standard deviation is 26.8 minutes and the time spent is approximately a normal distribution. What are the times that approximately 99.73% of all workers will fall? 

A. [387.5 438.5]

B. [386.2 439.8]

C. [372.8 453.2]

D. [359.4 466.6]

E. [332.6 493.4]

2. When using the Chebyshev's theorem to obtain the bounds for a 99.73 percent of the values in a population, the interval generally will be ___________ the interval obtained for the same percentage if normal distribution is assumed (empirical rule). 

A. Shorter than

B. Wider than

C. The same as

D. A Subset of

Summary

These multiple choice questions belong to Statistics and they discuss about calculation of standard deviation and Chebyshev’s theorem.

Total Word Count 4