標題:
statistic mathematics uni
發問:
a) A clinical trial was conducted and in a randomized sample of 305 patients the medicine was found to give satisfactory relief from allergy for 241 patients. Determine a 95% confidence interval for the proportion of the patient population that is likely to find relief with the treatment. The... 顯示更多 a) A clinical trial was conducted and in a randomized sample of 305 patients the medicine was found to give satisfactory relief from allergy for 241 patients. Determine a 95% confidence interval for the proportion of the patient population that is likely to find relief with the treatment. The manufacturer’s advertising statement claims that 88% of patients are treated successfully. Use your confidence interval to examine this claim. b) in a paired feeding experiment, the gains in weight in kg of small animals fed on two different diets are: Pair 1 2 3 4 5 Diet X 4.4 3.8 3.3 4.0 3.5 Diet Y 4.4 3.1 2.9 4.2 2.9 Test if there is any real difference in average weight gains due to the two diets.
最佳解答:
a) p'=241/305=0.7902. a 95% confidence interval is p'-1.96√[p'(1-p')/n]
其他解答:
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it didnt provided.but in my opinion in part a it said that 95% confidence interval so it may be 5 % significance level.|||||For (b), any significance level (say 1% or 5%) provided?4E350C6F06A145F0
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