i. Two examples of a hypothesis are: 1) mean monthly income from all sources for senior citizens is $841 and
2) twenty percent of juvenile offenders ultimately are caught and sentenced to prison.
Ii) Since there is more variability in sample means computed from smaller samples, we have more confidence in the resulting estimates and are less apt to reject null hypothesis.
Iii) We call a statement about the value of a population parameter a hypothesis.
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) All statements are false

Question

Quizplus · Accepted Answer

Statement (i) is correct as it provides examples of hypotheses. Statement (iii) is correct as it defines a hypothesis. Statement (ii) is incorrect because more variability in sample means from smaller samples actually decreases confidence in estimates, making us more likely to reject the null hypothesis.

I Two Examples of a Hypothesis Are: 1) Mean Monthly