Atopic or recent clinical interest is the possibility of using drugs to reduce infarct size is patients who have myocardial infarction within the past 24 hours. suppose we know that in untreated patients the mean infarct size 25 (ck - g-eq/m). furthermore, in 8 patients treated with a drug the mean infarct size is 16. suppose ? = 10. is there statistical evidence the drug is effective in reducing infarct size?
(a) what hypotheses should be used to test the claim?
h0: ? = 25 and ha: ? < 25h0: ? = 25 and ha: ? > 25 we can't answer this question because we aren't given the null value in the statement of the problem. h0: x = 25 and ha: x< 25h0: ? = 16 and ha: ? < 16h0: ? = 25 and ha: ? ? 25h0: ? = 16 and ha: ? > 16h0: ? = 16 and ha: ? ? 16
(c) assume the conditions are met, what is the p-value of the test?
(d) assume ? = 0.01. should you reject or fail to reject?
(e) complete the conclusion statement below. for the first blank your choices are: provides, does not provide.