Two brands of new puppy food (brands A and B) were compared to a standard brand...
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Two brands of new puppy food (brands A and B) were compared to a standard brand (brand C). A random sample of 75 puppies (25 in each group) was given each brand over a period of one month, and the weight gain (in pounds) was measured for each puppy. The results are: Brand 34 8 12₂ B A 10.5 10.6 8.2 2.1 2.2 4.8 25 25 25 Assume that MSW = 10.6159, and that the overall mean is 9.76. The claim is that the average weight gain for all brands is equal. (a) Find the value of MSB. (b) State the null hypothesis, test-statistic, and the range for your p-value. (c) State the decision and conclusion in terms of the problem, assuming a = 0.05. (d) What assumption/s of ANOVA may be violated in this example? Two brands of new puppy food (brands A and B) were compared to a standard brand (brand C). A random sample of 75 puppies (25 in each group) was given each brand over a period of one month, and the weight gain (in pounds) was measured for each puppy. The results are: Brand 34 8 12₂ B A 10.5 10.6 8.2 2.1 2.2 4.8 25 25 25 Assume that MSW = 10.6159, and that the overall mean is 9.76. The claim is that the average weight gain for all brands is equal. (a) Find the value of MSB. (b) State the null hypothesis, test-statistic, and the range for your p-value. (c) State the decision and conclusion in terms of the problem, assuming a = 0.05. (d) What assumption/s of ANOVA may be violated in this example?
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ANSWER a To find the value of MSB Mean Square Between we need to use the formula MSB SSB dfB where SSB is the sum of squares between groups and dfB is the degrees of freedom between groups Since we ar... View the full answer
Related Book For
College Mathematics for Business Economics Life Sciences and Social Sciences
ISBN: 978-0321614001
12th edition
Authors: Raymond A. Barnett, Michael R. Ziegler, Karl E. Byleen
Posted Date:
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