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In a recent survey, 30% of human resource directors still think that it is not very...

In a recent survey, 30% of human resource directors still think that it is not very important for business students to take a course in business ethics.  For a sample of 8 human resource directors, what is the probability that 7 think it is very important for business students to take a business ethics course?

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Answer #1

Solution: The problem is a binomial distribution problem with .

Probability that human resource director think that it is not very important for business students to take a coourse in business ethics is

Therefore, the probability that human resourse director think that it is very important for business students to take a coourse in business ethics is

Let x be the number of director's who think that it is very important for business students to take a business ethics course.

Therefore, we have to find

Using the binomial probability distribution, we have:

Therefore, for a sample of 8 human resource directors, the probability that 7 think it is very important for business students to take a business ethics course is

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