As part of its interview process, an employment agency tests the client\'s typin

Question

As part of its interview process, an employment agency tests the client's typing speed. The stem-and-leaf display below shows the results for the most recent clients, 19 of whom received a job offer and 20 of whom did not. Answer the questions that follow Typing speeds (words per minute) Offer No offer 96333 987614 02445778 996533215055689 984600357 Key: 33 33 33 (a) What were the ranges of typing speeds for the two groups? Offer No offer (b) Which group had the higher median typing speed? O Offer O No offer The medians were the same (c) Which group had more typing speeds in the 30s? Offer No offer Each had the same

Explanation / Answer

a)range for typing speed:

Offer =69-33=36

No offer =67-33=34

b)median for offer =(n+1)/2 th value =10 th value =52

median for no offer =(n+1)/2 th value =10.5th value=(50+55)/2=52.5

hence no offer has higher median

c)

offer has more typing spped (3)

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