Question 37. 37. Word
Problems: Compute the sample mean, sample median X(M),
sample range, and sample variance.

The following data represent scores of 50 students in an applied
business statistics test.

               
72    72    93   
70    59    78   
74    65    73   
80
               
57    67    72   
57    83    76   
74    56    68   
67
               
74    76    79   
72    61    72   
73    76    67   
49
               
71    53    67   
65   100    83   
69    61    72   
68
               
65    51    75   
68    75    66   
77    61    64    74
(Points : 4)

Question 38. 38. Word Problem:
Does the data set represent a sample or a population? If it is a
sample, describe the population from which it has been drawn.

The following data represent scores of 50 students in an applied
business statistics test.

               
72    72    93   
70    59    78   
74    65    73   
80
               
57    67    72   
57    83    76   
74    56    68   
67
               
74    76    79   
72    61    72   
73    76    67   
49
               
71    53    67   
65   100    83   
69    61    72   
68
               
65    51    75   
68    75    66   
77    61    64    74
(Points : 4)

Question 39. 39. Word
Problems: The number of widgets produced by 9 employees in
an eight hour shift is recorded as: 135, 120, 116, 119, 121, 125,
135, 131, 123

Find the mean number of widgets produced. (Points : 3)

Question 40. 40. Word
Problems: The number of widgets produced by 9 employees in
an eight hour shift is recorded as: 135, 120, 116, 119, 121, 125,
135, 131, 123

What is the range of widgets produced given in the problem
presented above? (Points : 3)