An amateur golfer wishes to determine if there is a difference between the drive distances of her two favorite drivers. (A driver is a specialized club used for driving the golf ball down range.) She hits 14 balls with Driver A and 10 balls with Driver B. The drive distances (in yards) for the trials are shown below. Driver A 282 246 253 302 264 248 275 214 269 283 303 257 233 279 Driver B 249 235 251 269 218 252 220 292 263 239 Assume that the populations are approximately normal. Construct a 90% confidence interval for the difference between the mean drive distances for the two drivers. The following statistical results were obtained using Microsoft Excel. You may use this information as needed to find the confidence interval. You do not have to interpret the results. Round intermediate calculations to three places. Final results may be rounded to the nearest whole number. Choose the appropriate confidence interval below. Driver A Driver B 248.8 7.114617191 Mean 264.8571429 Mean Standard Error 6.721179533 Standard Error Median 266.5 Median 250 Mode #N/A Mode #N/A 22.498395 506.1777778 Standard Deviation 25.14835105 Standard Deviation Sample Variance Kurtosis 632.4395604 Sample Variance -0.103305228 Kurtosis 0.195476095 Skewness -0.315025261 Skewness 0.428019527 Range Minimum 89 Range 74 214 Minimum 218 Maximum 303 Maximum 292 Sum 3708 Sum 2488 Count 14 Count 10 O (2, 34) (0, 32) (0, -32) O (-2, 34) loooo

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