Question

stems.) Describe the shape, center, and spread of the distribu ()Make a back tion. Are there any outliers? samples. That is, leaves, one to the (Draw a line on e and leaves.) Orde stem to largest a mate midpointsc study more than Wom 270 150 180 120 180 12 150 120 18 200 150 1 120 60 1 90 240 Harry Walker/Photolibrary 1.38 Do women study more than men? We asked the stu- studied on a typical weeknight. Here are the responses of random dents in a large first-year college class how many minutes they 1.39 Fur plot of the samples of 30 women and 30 men from the class: STUDYTIMES 1.37. Wha

Answer 1

STEM AND LEAVES PLOT:

MEN WOMEN

STEMS	LEAVES	STEMS	LEAVES
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30	0 0000 5 000 5 0005 000000 000 0 00 0 00 0	6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36	0 0 5 0000000 0000 0 000000000 0 000 0 0

The approximate mid-points for both the groups are:-

For Men: Here in this cases the total number of observation is even, so, the median is the average of the middle two values - 120 and 120. That is, the median is (120 + 120)/2 or 120. So, we can say that the approximate mid-point is 120.

For Women: Here in this cases also, the total number of observation is even, so, the median is the average of the middle two values - 170 and 180. That is, the median is (170 + 180)/2 or 175. So, we can say that the approximate mid-point is 175.

Since, here the average value of women is more than that of men. Moreover, the lowest value as well as the highest value of women are larger than men. So, over all these reasons, we can conclude or we can claim that women study more than men.