A Recent Article in the Paper Claims That Business Ethics $\text { Yes, the sample size is } n = 20 \text {. }$

question 199

Multiple Choice

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 41% 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) Yes, the sample is a random and independent sample.
• B) No, a binomial distribution requires only two possible outcomes for each experimental unit sampled.
• C) \(\text { Yes, the sample size is } n = 20 \text {. }\)
• D) No, the employees would not be considered independent in the present sample.

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Definitions:

Critical Value

A critical value is a threshold in hypothesis testing that defines the boundary or cutoff points for deciding whether to reject the null hypothesis.

Population Mean

The average value of a property in a population, calculated by summing the values of all members of the population and dividing by the total number of members.

Confidence Interval

A range of values derived from sample statistics that is likely to cover the true parameter of the population with a certain level of confidence.

Standard Deviation

A statistic that measures the dispersion of a dataset relative to its mean.