An instructor recommends to students in his introductory statistics class to spe

Question

An instructor recommends to students in his introductory statistics class to spend at least 5 hours studying outside class. One of the items on the student survey for this course was "How many hours a week do you study for this class?” The instructor examined the data for men and women separately. Below is the distribution of this variable for the 30 women in the class.

Problem 3: An instructor recommends to students in his introductory statistics class to spend at least 5 hours studying outside class. One of the items on the student survey for this course was "How many hours a week do you study for this class?" The instructor examined the data for men and women separately. Below is the distribution of this variable for the 30 women in the class Part A: How should the instructor interpret the amount of time that women spend studying for the class? Y 2 1 2 3 4 5 6 7 8 9 10 HOURS OF STUDY There can be more than one correct answer. Please answer all that apply a. A majority of women in the class spend less than the recommended number of hours studying although a few women do take the instructors advice. b. The women in the class study less than the men in the class c. If you remove the three women with the highest number of study hours, then the result will show ain approximately normal distribution. Part B: Which of the following boxplots represents the same data set as the histogram shown abov? 12 34 578 90 HOURS OF STUDY a. Graph A. b. GraphB c. Graph Q.

Explanation / Answer

Answers

Part A

option a and c

Hint: From the histogram, it is clear that most of the observations tend to occur towards the lower end of the scale. Hence we can say that majority of the women in the class spend less than the recommended number of hours studying although a few women do take the instructor advice. Also if we remove the three women with highest number of study hours, the distribution roughly becomes normal.

Part B

Graph B

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