Question

A sample of midterm grades for five students showed the following results:60 ,63 ,72 ,75 ,80...

A sample of midterm grades for five students showed the following results:60 ,63 ,72 ,75 ,80 . Which of the following statements are correct, and which should be challenged as being too generalized?

a. The average midterm grade for the sample of five students is acceptable or too generalized?

b. The average midterm grade for all students who took the exam is acceptable or too generalized?

c. An estimate of the average midterm grade for all students who took the exam is acceptable or too generalized?

d. More than half of the students who take this exam will score between and acceptable or too generalized?

e. If five other students are included in the sample, their grades will be between and acceptable or too generalized?

Math   Advanced-Math   
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Homework Answers

Answer #1

(a)

acceptable

Explanation;

The statement is regarding the sample average and so it is acceptable

(b)

too generalized

Explanation:
The statement is regarding average of all students and so it is too generalized.

(c)
Answer:

acceptable

Explanation:
Sample mean is an estimate of population mean. So, this isacceptable.

(d)

too generalized

Explanation:

The scores of 5 students cannot be generalized.

(e)

too generalized

The scores of one sample need not be same for another sample.

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