i. An alternate hypothesis is a statement about a population parameter that is accepted when the null hypothesis is rejected. ii. The level of significance is the risk we assume of rejecting the null hypothesis when it is actually true.
iii. There is only one level of significance that is applied to all studies involving sampling.
A) (i), (ii), and (iii) are all correct statements.
B) (i) is a correct statement but not (ii) or (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (i) and (ii) are correct statements but not (iii).
E) (i), (ii), and (iii) are all false statements.

Question

Quizplus · Accepted Answer

Statement (i) is correct as an alternate hypothesis is indeed a statement about a population parameter that is accepted when the null hypothesis is rejected. Statement (ii) is also correct as the level of significance is the risk we assume of rejecting the null hypothesis when it is actually true. However, statement (iii) is false as the level of significance is not the same for all studies involving sampling. It depends on various factors such as the research question, the size of the sample, and the potential consequences of making a type I error. Thus, option D is the correct choice.

I an Alternate Hypothesis Is a Statement About a Population