Question

Thirty of the 198 students enrolled in Statistics 101 were asked if they wanted Exam II to be atake-home or an in-class assessment. Twenty, or about 67%, of the students polled indicated apreference for an in-class exam. The professor concluded that the majority of the students inthesamplewould prefer an in-class examination for the second assessment. Did the professorperforma descriptive study or an inferential study?

Answer 1

Inferential study

Explanation:

From the question, we understand that the professor concluded that majority of the class (of 198 students) preferred in class assessment based on the response from 67% of the sample size (i.e 30 students)

When decisions or conclusions are made about an overall population based on a survey carried out on a smaller sample, such study is referred to as an inferential study or inferential research.

Descriptive study on the other hand focuses on the features rather than the result of the experiment of the dataset.