TABLE 10-18 As part of an evaluation program, a sporting goods retailer wanted to compare the downhill coasting speeds of four brands of bicycles. She took three of each brand and determined their maximum downhill speeds. The results are presented in miles per hour in the table below. Trial Barth Tornado Reiser Shaw 43 37 41 43 46 38 45 45 43 39 42 46 True or False: Referring to Table 10-18, the test is less sensitive to the assumption that the population of speeds has the same variance for the four brands because the sample sizes of the four brands are equal. Seleccione una: O A. True B. False

TABLE 10-18 As part of an evaluation program, a sporting goods retailer wanted to compare the downhill coasting speeds of four brands of bicycles. She took three of each brand and determined their maximum downhill speeds. The results are presented in miles per hour in the table below. Trial Barth Tornado Reiser Shaw 43 37 41 43 46 38 45 45 43 39 42 46 True or False: Referring to Table 10-18, the test is less sensitive to the assumption that the population of speeds has the same variance for the four brands because the sample sizes of the four brands are equal. Seleccione una: O A. True B. False

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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1.To determine which of the two models above – BIG or small – is statistically superior at the .05 level, please calculate the appropriate F-statistic (4 decimal places). 2. How many degrees of freedom are there?
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