A researcher is studying a new treatment protocol to combat a certain disease. The interest is in comparing the performance of the new treatment with the standard treatment method. In a survey on the subject, a first group of 250 patients received standard treatment, while a second group of 185 patients received the new treatment. Among subjects treated with the standard method, 88 were not recovered, while 39 were not recovered among those treated with the new protocol. Statistical analysis should be done to evaluate and compare treatment options. Perform an appropriate statistical hypothesis test to see whether the rate of people with disease persistence (ie, the non-recovery rate) was lower among those who received the new treatment. The hypothesis test must use a significance level of α=0.09 a. What is the value of the test statistic? b. What range of values is the p-value in? c. At the 9% significance level, can the null hypothesis be rejected?
A researcher is studying a new treatment protocol to combat a certain disease. The interest is in comparing the performance of the new treatment with the standard treatment method. In a survey on the subject, a first group of 250 patients received standard treatment, while a second group of 185 patients received the new treatment. Among subjects treated with the standard method, 88 were not recovered, while 39 were not recovered among those treated with the new protocol. Statistical analysis should be done to evaluate and compare treatment options. Perform an appropriate statistical hypothesis test to see whether the rate of people with disease persistence (ie, the non-recovery rate) was lower among those who received the new treatment. The hypothesis test must use a significance level of α=0.09
a. What is the value of the test statistic?
b. What
c. At the 9% significance level, can the null hypothesis be rejected?
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