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Mathematics, 13.12.2019 06:31 xojade
Aresearcher expects a treatment to produce an increase in the population mean. the treatment is evaluated using a one tailed hypothesis test, and the test produces z = +1.85. based on this result, what is the correct statistical decision?
a) the researcher should reject the null hypothesis with a = .05 but not with a = .01.
b) the researcher should reject the null hypothesis with either a = .05 or a = .01.
c) the researcher should fail to reject h0 with either a = .05 or a = .01.
d) this cannot be answered without additional information.
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Aresearcher expects a treatment to produce an increase in the population mean. the treatment is eval...
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