Question

A textbook publisher wants to know if students are more likely to buy a textbook if it has pictures on the front cover. He looks at the behavior of 1000 students, examining how much they say they would like to buy a certain book. He finds that, on average, they report being very interested--an average score of 8 on a 1-10 scale--in buying a book with a picture on the cover. Has he calculated a statistic or a parameter?

A statistic

A parameter

Both a statistic and a parameter

Neither a statistic nor a parameter

Answer 1

Solution:

He has calculated a statistic.

Explanation:

In the given problem, a publisher looks at the behavior of 1000 students and these 1000 students are just a part of the population. The publisher has found the average score 8 and this average is based on the sample data. Therefore, the given characteristic is the sample characteristic and is called a statistic.