A Researcher Expects a Treatment to Produce an Increase in the Population

A researcher 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 α = .05 but not with α = .01.
B) ​The researcher should reject the null hypothesis with either α = .05 or α = .01.
C) ​The researcher should fail to reject H₀ with either α = .05 or α = .01.
D) ​The researcher should change α.

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free