Question

Scientists at a pharmaceutical company want to compare their new drug to an existing one. Let's call the new drug A and the old drug B. In a random sample of 120 subjects who took drug A, 40% developed severe side effects. Whereas, in a random sample of 100 subjects who took drug B, 45% developed severe side effects. These scientists are interested to see if there is significant evidence that their new drug reduces severe side effects in patients the ? = 0.05 significance level. What is the critical value for this test? qnorm(0.025) = -1.959964 qt(0.025, 99) = -1.984217 qnorm(0.05) = -1.644854 qt(0.05, 99) = -1.660391

          Scientists at a pharmaceutical company want to compare their new drug to an existing one. Let's call the new drug A and the old drug B. In a random sample of 120 subjects who took drug A, 40% developed severe side effects. Whereas, in a random sample of 100 subjects who took drug B, 45% developed severe side effects. These scientists are interested to see if there is significant evidence that their new drug reduces severe side effects in patients the ? = 0.05 significance level.

What is the critical value for this test?

qnorm(0.025) = -1.959964
qt(0.025, 99) = -1.984217
qnorm(0.05) = -1.644854
qt(0.05, 99) = -1.660391

Scientists at a pharmaceutical company want to compare their new drug to an existing one. Let's call the new drug A and the old drug B. In a random sample of 120 subjects who took drug A, 40% developed severe side effects. Whereas, in a random sample of 100 subjects who took drug B, 45% developed severe side effects. These scientists are interested to see if there is significant evidence that their new drug reduces severe side effects in patients the ? = 0.05 significance level.

What is the critical value for this test?

qnorm(0.025) = -1.959964
qt(0.025, 99) = -1.984217
qnorm(0.05) = -1.644854
qt(0.05, 99) = -1.660391

Added by Jean S.

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