QUESTION 2 (10 Points)

While doing routine screening at a nursing home, you obtain the following blood glucose readings from 20 patients:

Glucose (mmol/dl)

90

160

139

115

121

95

122

99

105

109

128

139

118

89

136

124

132

144

107

100

Suppose that the typical mean value for patients of this age is 100 mmol/dl, and the expected variance equals 200. (A) What test should you use to analyze these data, and why? (B) Do your patients differ in blood glucose level from the expected mean value?