Question Details

71. The local electronics retailer has recently conducted a study on purchasers of large screen televisions. The study recorded the type of television and the credit account balance of the customer at the time of purchase. The following results were obtained:
  
What percentage of the customers with the highest credit balances purchased an LCD television? 
A. 36.30%
B. 5.90%
C. 19.60%
D. 56.30%
E. 16.20%

72. The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below:
24, 56, 43, 35, 37, 27, 29, 44, 34, 28, 33, 28, 46, 31, 38, 41, 48, 38, 27, 29, 37, 33, 31, 40, 50
How many classes should be used in the construction of a histogram? 
A. 4
B. 6
C. 10
D. 5
E. 2

73. The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below:
24, 56, 43, 35, 37, 27, 29, 44, 34, 28, 33, 28, 46, 31, 38, 41, 48, 38, 27, 29, 37, 33, 31, 40, 50
What is the shape of the distribution of the data? 
A. Skewed with tail to the right
B. Skewed with tail to the left
C. Normal
D. Bi-model

74. The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20, 21, 8, 17, 22, 19, 18, 19, 14, 17, 11, 6, 21, 25, 4, 19, 9, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 8
How many classes should be used in the construction of a histogram? 
A. 6
B. 5
C. 7
D. 4
E. 8

Essay Questions
 

75. The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below:
24, 56, 43, 35, 37, 27, 29, 44, 34, 28, 33, 28, 46, 31, 38, 41, 48, 38, 27, 29, 37, 33, 31, 40, 50
Construct an Ogive plot 

76. The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20, 21, 8, 17, 22, 19, 18, 19, 14, 17, 11, 6, 21, 25, 4, 19, 9, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 8
Complete this frequency table for these data
   

77. The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20, 21, 8, 17, 22, 19, 18, 19, 14, 17, 11, 6, 21, 25, 4, 19, 9, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 8
Construct a stem-and-leaf plot. 

78. The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20, 21, 8, 17, 22, 19, 18, 19, 14, 17, 11, 6, 21, 25, 4, 19, 9, 12, 16, 16, 10, 28, 24, 6, 21, 20, 25, 5, 17, 8
Construct an Ogive plot 

79. Consider the following data:
  
Create a stem and leaf display for the sample. 

80. Consider the following data on distances traveled by people to visit the local amusement park.
  
Construct an Ogive plot that corresponds to the frequency table.