Refer to the baseball game times in Exercise 31. Calculate an upper confidence bound with confidence level 95% for the population standard deviation of game time. Interpret your interval. Explore the issue of normality for the data and explain how this is relevant to your interval.

Data From Exercise 31

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Here are the lengths (in minutes) of the 63 nine-inning games from the first week of the 2001 major league baseball season: 194 160 176 203 187 163 162 183 152 177 177 151 173 188 179 194 149 165 186 187 187 177 187 186 187 173 136 150 173 173 136 153 152 149 152 180 186 166 174 176 198 193 218 173 144 148 174 163 184 155 151 172 216 149 207 212 216 166 190 165 176 158 198.