Assume the USGA wants to compare the mean distances associated with the 4 different brands of golf balls when struck with driver. A completely randomized design is used, with Iron Byron, the USGA's robotic golfer, using the driver to hit random sample of 10 balls of each brand in random sequence. The distance is recorded for each hit, and the results are given below, organized by brand.
Brand A |
Brand B |
Brand C |
Brand D |
251.2 |
263.2 |
269.7 |
251.6 |
245.1 |
262.9 |
263.2 |
248.6 |
248 |
265 |
277.5 |
249.4 |
251.1 |
254.5 |
267.4 |
242 |
260.5 |
264.3 |
270.5 |
246.5 |
250 |
257 |
265.5 |
251.3 |
253.9 |
262.8 |
270.7 |
261.8 |
244.6 |
264.4 |
272.9 |
249 |
254.6 |
260.6 |
275.6 |
247.1 |
248.8 |
255.9 |
266.5 |
245.9 |
Perform complete analysis by using ANOVA and 5% significance level.