grades on a political science test and the number of hours grades on a political

Question

grades on a political science test and the number of hours grades on a political science test and the number of hours grades on a political science test and the number of hours grades on a political science test and the number of hours 16438249 in yes Statistics sec 02 Fall 2017 Quiz: Chapter 6 Quiz rse This Question: 1 pt This Quiz: 9 pts ing years without having children (in the 1970s, this number was 10%) Complete parts a through c below ·give or take. The expected number of women who had no children is (Round to the nearest integers as needed ) te b. Give the range of likely values from 1 standard deviation below the mean to 1 standard deviation above the mean. m c Iif you found that 49 out of 400 randomly sampled women ended their childbearing years without having children, would you be surprised? Why or why not? O O B. No, because 49 is far from the mean (not within 1 SD) You should expect fromtowomen to have no children. (Use ascending order Round to the nearest integers as needed ) O C. O D. Yes, because 49 is close to the mean (within 1 SD) Yes, because 49 is far from the mean (not within 1 SD) ss

Explanation / Answer

a) here mean =np=400*0.15=60

and std deviaiton=(np(1-p))1/2 =7.14

therefore expected number of women who had no children is 60 given or take 7.

b)

you should expect from 53 to 67 women to have no chidren

c)option D is correct/

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