Chapter 5, Problem 5.80RE

(a)

To determine

To explain what is the population in this example.

Answer to Problem 5.80RE

The population is American college students.

Explanation of Solution

The population in this example is: The population is American college students.

(b)

To determine

To explain what is the sampling frame in this example.

Answer to Problem 5.80RE

The sampling frame is $100$ students from the professor's PSY $001$ class.

Explanation of Solution

The sampling frame is:

The sampling frame is $100$ students from the professor's PSY $001$ class.

(c)

To determine

To explain briefly why the sampling frame is or is not suitable for the question being investigated.

Answer to Problem 5.80RE

It is not entirely suitable.

Explanation of Solution

This sampling frame is not entirely appropriate since it only includes college freshmen, while the population should be all college students.

To determine

(d)

To discuss briefly the question Dr. Iconu asked and is it a slanted question.

Explanation of Solution

The question is slightly slanted because the professor introduces the idea that without commercials, there would be no television. As a result, respondents are more likely to say that it is a fair price to pay.

To determine

(e)

To discuss briefly why the Iconu’s announced result is misleading.

Explanation of Solution

The professor announced that $82\%$ of all college students believe that commercials are a fair price to pay, when he only surveyed college freshmen, who cannot be representative of all college students.

To determine

(f)

To discuss that is Icnou’s defense relevant or not and why.

Answer to Problem 5.80RE

It is irrelevant.

Explanation of Solution

His argument is irrelevant. Criticism would either be because of his unrepresentative sample frame or his slanted question, neither of which can be addressed by using a simple random sample.