The data set below contains the electricitycosts, indollars, during July 2013 for a random sample of 30 one-bedroom apartments in a large city.

137

96

206

180

116

192

123

125

142

136

137

172

143

155

186

159

83

174

183

154

208

156

103

167

223

146

105

163

174

124

Decide whether the data appear to be approximately normally distributed by comparing data characteristics to theoretical properties.

A. No, the mean and median of the data are too different for the distribution to be normal.

B. No, the interquartile range of the data is too small for the distribution to be normal.

C. Yes, the distribution of the data appears to closely resemble a normal distribution.

D. No, the range of the data is too great for the distribution to be normal.