Q6) A company that manufactures small lathes is interested in establishing standards for employees. A random sample of 18 employees is selected in order to develop the standards. The data collected is below.

(a) What are the mean and median assembly times for the 18 employees?

(b) A manager at the firm feels that assembly time is related to intelligence. She feels that employees who did well in high school (as measured by high school averages) should be able to do the job faster. Does the data support her hunch?

High school

average Time to

assemble lathe

(minutes)

50 52

62 53

65 62

68 70

71 76

73 78

75 80

79 80

80 85

82 86

83 90

85 94

88 100

90 102

92 111

94 120

97 135

100 162