5. The ISA Babcock Company supplies poultry farmers with hens, advertising that a mature B300 Layer...

  

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5. The ISA Babcock Company supplies poultry farmers with hens, advertising that a mature B300 Layer produces eggs with a mean weight of 60.7 grams. Suppose that egg weights follow a Normal model with standard deviation 3.1 grams. A local company claims that its chicken feed will help chickens produce larger eggs. So the farmer who bought her hens from the ISA Babcock Company fed her hens the new feed for 2 weeks. Then she randomly selected 30 hens and weighed all of their 174 eggs produced the following week, finding a mean of 62.3 grams with a standard deviation of 2.4 grams. Is there strong evidence to support the feed company's claim? A) 1-population proportion hypothesis test B) 2-population mean hypothesis test C) 2-population proportion hypothesis test D) Matched pairs hypothesis test E) 1-population mean confidence interval F) 1-population proportion confidence interval G) 2-population mean confidence interval H) 2-population proportion confidence interval 1) Matched pairs confidence interval J) None of the above 26. It occurred to the farmer that the difference in weight of the eggs might have been due to other factors, like weather changes, etc., rather than the new food. So she ran another experiment where she randomly selected 40 hens and tagged their legs. She fed these hens the old food for three weeks, keeping track of the weights of the eggs for the third week. From the other hens, she randomly selected 40 hens, fed them the new feed, and tracked the weights of their eggs during that same third week. Is there strong evidence to support the feed company's claim? A) 1-population proportion hypothesis test B) 2-population mean hypothesis test C) 2-population proportion hypothesis test D) Matched pairs hypothesis test E) 1-population mean confidence interval F) 1-population proportion confidence interval G) 2-population mean confidence interval H) 2-population proportion confidence interval 1) Matched pairs confidence interval J) None of the above 27. Instead of the experiment in Exercise 26, the farmer randomly selected 40 hens, tagged their legs by number, and tracked the weight of the largest egg laid by each hen while on the old food and then the largest egg produced while eating the new food, then determined the difference in weight in the eggs from each hen. Is there strong evidence to support the feed company's claim? A) 1-population proportion hypothesis test B) 2-population mean hypothesis test C) 2-population proportion hypothesis test D) Matched pairs hypothesis test E) 1-population mean confidence interval F) 1-population proportion confidence interval G) 2-population mean confidence interval H) 2-population proportion confidence interval 1) Matched pairs confidence interval J) None of the above 28. The Near Normality Condition is satisfied when a. The sample is small but symmetric and unimodal with no outliers b. The sample is not symmetric but large (larger than 50, say) with no outliers c. Only when the sample is approximately Normal d. Either a. or b. 29. If the conditions are satisfied and if the P-value of the t-test is extremely small, then we reject the Null Hypothesis. We have shown a. The null hypothesis must be false b. The alternative hypothesis must be true c. a. and b. d. neither a. nor b. 30. Which of the following is not an option for a null hypothesis? A) Ho: P> 40%. C) Ho: P < 40%. B) Ho: P 40%. D) A, B), and C) 5. The ISA Babcock Company supplies poultry farmers with hens, advertising that a mature B300 Layer produces eggs with a mean weight of 60.7 grams. Suppose that egg weights follow a Normal model with standard deviation 3.1 grams. A local company claims that its chicken feed will help chickens produce larger eggs. So the farmer who bought her hens from the ISA Babcock Company fed her hens the new feed for 2 weeks. Then she randomly selected 30 hens and weighed all of their 174 eggs produced the following week, finding a mean of 62.3 grams with a standard deviation of 2.4 grams. Is there strong evidence to support the feed company's claim? A) 1-population proportion hypothesis test B) 2-population mean hypothesis test C) 2-population proportion hypothesis test D) Matched pairs hypothesis test E) 1-population mean confidence interval F) 1-population proportion confidence interval G) 2-population mean confidence interval H) 2-population proportion confidence interval 1) Matched pairs confidence interval J) None of the above 26. It occurred to the farmer that the difference in weight of the eggs might have been due to other factors, like weather changes, etc., rather than the new food. So she ran another experiment where she randomly selected 40 hens and tagged their legs. She fed these hens the old food for three weeks, keeping track of the weights of the eggs for the third week. From the other hens, she randomly selected 40 hens, fed them the new feed, and tracked the weights of their eggs during that same third week. Is there strong evidence to support the feed company's claim? A) 1-population proportion hypothesis test B) 2-population mean hypothesis test C) 2-population proportion hypothesis test D) Matched pairs hypothesis test E) 1-population mean confidence interval F) 1-population proportion confidence interval G) 2-population mean confidence interval H) 2-population proportion confidence interval 1) Matched pairs confidence interval J) None of the above 27. Instead of the experiment in Exercise 26, the farmer randomly selected 40 hens, tagged their legs by number, and tracked the weight of the largest egg laid by each hen while on the old food and then the largest egg produced while eating the new food, then determined the difference in weight in the eggs from each hen. Is there strong evidence to support the feed company's claim? A) 1-population proportion hypothesis test B) 2-population mean hypothesis test C) 2-population proportion hypothesis test D) Matched pairs hypothesis test E) 1-population mean confidence interval F) 1-population proportion confidence interval G) 2-population mean confidence interval H) 2-population proportion confidence interval 1) Matched pairs confidence interval J) None of the above 28. The Near Normality Condition is satisfied when a. The sample is small but symmetric and unimodal with no outliers b. The sample is not symmetric but large (larger than 50, say) with no outliers c. Only when the sample is approximately Normal d. Either a. or b. 29. If the conditions are satisfied and if the P-value of the t-test is extremely small, then we reject the Null Hypothesis. We have shown a. The null hypothesis must be false b. The alternative hypothesis must be true c. a. and b. d. neither a. nor b. 30. Which of the following is not an option for a null hypothesis? A) Ho: P> 40%. C) Ho: P < 40%. B) Ho: P 40%. D) A, B), and C)

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SOLUTION Ans4 607 n30 623 031 Hypothesis 28 40 hens are taken measure weights wi... View the full answer