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

question 37

Multiple Choice

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. The test statistic for a problem where the population standard deviation is unknown is the Student's t distribution.

• 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.

---

Definitions:

Association

A connection or relationship between two ideas, thoughts, or events, often based on experiences or learning.

Naturalistic Observation

A research method involving the systematic observation of subjects in their natural environment without interference.

Careful Observation

The act of diligently watching or noting phenomena as they occur, often for the purpose of collecting data for research or gaining a deeper understanding of a topic.

Criterion-based Induction

A method of reasoning in which a conclusion is drawn based on a set of criteria that are believed to support that conclusion.