QUESTION 15 Answer parts (a) and (b) in the space below. TWO workers on the same job show the following results over a long perlod of time. Worker Worker 30 25 Mean time of completing the job (minutes) Standard deviation (minutes) (a) Which worker appears to be more consistent in the time he requires to complete the job? Explain (b) Which worker appears to be faster in completing the job? Explain TT T Arial (121) Words:0 Pathp 6 points QUESTION 16 Answer parts () - (c) in the space below. The scores of an entrance test for the high school pass-outs in a particular year were bell shaped. If the mean and standard deviation were 490 and 100. Then: all answers