A recent article in the paper claims that business ethics are at an all-time low.  Reporting on a recent sample, the paper claims that 45% of all employees believe their company president possesses low ethical standards.  Suppose 20 of a company’s employees are randomly and independently sampled and asked if they believe their company president has low ethical standards and their years of experience at the company. Could the probability distribution for the number of years of experience  be modelled by a binomial probability distribution? A) No, the employees would not be considered independent in the present sample. B) Yes, the sample size is n = 20. C) No, a binomial distribution requires only two possible outcomes for each experimental unit sampled. D) Yes, the sample is a random and independent sample.

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A:

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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.