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Under what circumstances is it most appropriate to use a one-tailed alternative

ID: 3127962 • Letter: U

Question

Under what circumstances is it most appropriate to use a one-tailed alternative hypothesis?

An unexpected finding (in the opposite direction) would have dangerous implications for public health

To ensure the study has a statistically significant finding

The population of interest is small and it is difficult to obtain a large sample size

To reduce a type I error

a.

An unexpected finding (in the opposite direction) would have dangerous implications for public health

b.

To ensure the study has a statistically significant finding

c.

The population of interest is small and it is difficult to obtain a large sample size

d.

To reduce a type I error

Explanation / Answer

sol)

Under what circumstances is it most appropriate to use a one-tailed alternative hypothesis?

To ensure the study has a statistically significant finding