3.Seven research questions are listed below. For each question:

- List the independent variable(s) and dependent variable(s).

- Propose an appropriate experimental design (e.g., between group, within group, ...) - Propose a statistical significance test to analyze the result

Note:

- Multiple design/tests may be possible for some scenarios. You only need to name one design/test

- The significance test must match with the experiment design(5 points each, 35 points total)

3.1 Do students in the English department have a higher GPA than students in the Education department?

Independent variable(s):

Dependent variable(s):

Design:

Significance test:

3.2 Is there difference in the length of the passwords for email accounts, online financial accounts, and entertainment accounts between Americans and Australians?

Independent variable(s):

Dependent variable(s):

Design:

Significance test:

3.3 Is there difference in the reaction time between left-handed users and right-handed users? Independent variable(s):

Dependent variable(s):

Design:

Significance test:

4

3.4 Is there a relationship between age and the annual healthcare related expense in the U.S.? (I.V. and D.V. can switch; You don't need to propose an experiment design for this question)

Independent variable(s):

Dependent variable(s):

Significance test:

3.5 Is there difference in the review ratings made by Amazon customers in spring, summer, fall, and winter?

Independent variable(s):

Dependent variable(s):

Design:

Significance test:

3.6 Is there a difference in the blood pressures of people over 60 in the morning, at noon, and in the evening?

Independent variable(s):

Dependent variable(s):

Design:

Significance test:

3.7 Is there difference in the first-year growth rate of four types of apples: Gala, McIntosh, Golden Delicious, and Fuji?

Independent variable(s):

Dependent variable(s):

Design:

Significance test: