5 43 Chicken Diet And Weight Part Iii In Exercises 5 31 And 5 33 We Compared The Effects Of Two Types Of Feed At A Tim 1 (79.12 KiB) Viewed 93 times
5 43 Chicken Diet And Weight Part Iii In Exercises 5 31 And 5 33 We Compared The Effects Of Two Types Of Feed At A Tim 2 (48.93 KiB) Viewed 93 times
5.43 Chicken diet and weight, Part III: In Exercises 5.31 and 5.33 we compared the effects of two types of feed at a time. A better analysis would first consider all feed types at once: casein, horsebean, linseed, meat meal, soybean, and sunflower. The ANOVA output below can be used to test for differences between the average weights of chicks on different diets. DF Mean Sq F value Pr(>F) 5231129.16 46225.83 15.36 0.0000 residuals 65 195556.02 3008.55 Conduct a hypothesis test to determine if these data provide convincing evidence that the average weight of chicks varies across some (or all) groups. Make sure to check relevant conditions. Figures and summary statistics are shown below. Sum Sg feed 400 350 300 IH Weight (in grams) 250 200 150 100 casein horsebean linseed meatmeal soybean sunflower Mean SD n casein 323.58 64.43 12 horsebean 160.2 38.63 10 Linseed 218.75 52.24 12 meatmeal 276.91 64.9 11 soybean 246.43 54.13 14 sunflower 328.92 48.84 12 What are the hypotheses for this test? Ho: Pchum Boy - sun Ha:c PmPsoysun Ho Ho Ho Hoy sun Ha: At least one pair of means is the same O Ho: Pc Phim Hoy sun Ha: At least one of the means is different
The test statistic for the hypothesis test is: (please round to two decimal places) The p-value for the hypothesis test is: (please round to four decimal places) Interpret the result of the hypothesis test in the context of the study: Since p = 0, there is no chance that the average weight of chicks is the same across all of the diets Since p <a, we reject the null hypothesis and accept that the average weight of chicks is not the same across all of the diets Since p <a, we reject the null hypothesis and accept that the average weight of chicks is the same across all of the Jiets Since p <a, we reject the null hypothesis and accept that the average weight of chicks is different for each type of diet
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