Given H0 18 and H1 18 we would commit Type I error if we yo

Given H₀: 18 and H₁: < 18, we would commit Type I error if we:

you must know the alpha value to draw a conclusion.

conclude that 18 when the truth is that < 18.

conclude that < 18 when the truth is that 18.

fail to reject 18 when the truth is that < 18.

Solution

Type-I error is committed if and only if we reject the null hypothesis when it is actually true.

Here the null hypothesis is H₀: 18 and the alternative is H₁: < 18

Hence a type-I error will occur iff

c. \"conclude that < 18 when the truth is that 18.\"