9115;21. 11:27 AM HW #6 (Chapter 6) 4. The data set below contains the electricity costs. in dollars, during July 2013 for a random sample of 30 one-bedroom apartments in a large city. Complete parts (a) and (b). 129 92 201 177 111 194 125 123 136 132 138 162 143 147 185 162 89 170 181 152 206 149 104 165 212 141 107 158 165 117 a. Decide whether the data appear to be approximately normally distributed by comparing data characteristics to theoretical properties. 0 A. No, the interquartile range of the data is too small for the distribution to be normal. 0 B. No. the mean and median of the data are too different for the distribution to be normal. 0 C. Yes, the distribution of the data appears to closely resemble a normal distribution. 0 D. No. the range of the data is too great for the distribution to be normal. b. Decide whether the data appear to be approximately normally distributed by constructing a normal probability plot. Use technology to construct the normal probability plot. Choose the correct graph below. OA. Os. Oc. III-Ir..- III-"l.- II- Electricity Cost (3) Electricity Cost (3) Electricity Cost (5) What is the best description of the given data based on the normal probability plot? 0 A. The data appear to be normally distributed. 0 B. The data are skewed to the right. 0 C. The data are skewed to the left. 0 D. The data appear to be randomly distributed