# com 297 generalizing from research results inferential statistics

Reading: Chapter 7: Generalizing From Research Results: Inferential Statistics

Lecture Notes: Under â€˜Resources,â€™ you will find â€˜Lecture Notes C,â€™ pp. 73-93.

From Book Chapter & Lecture Notes:

Q1. Suppose you wish to test the hypothesis that the number of print media (newspaper, magazine,

and so forth) that people subscribe to is related to subscribersâ€™ education levels. The following

hypothetical data was gathered from five people.

Number of subscriptions, x Education level, y (years)

4 18

5 20

1 5

2 9

3 15

(1) Draw a scatter diagram.

y

x

(2) Formulate null and research hypotheses that can be tested adequately using a correlation

analysis.

H0: ______________________________________ (p=0)

H1: ______________________________________ (p=0)

(3) If the computed t value is in the rejection region (r=.97, p<.05), can you reject the null hypothesis at the p<.05 level of significance? Why? Show your work for t test.

Q2. Design a media effects study for which a correlation analysis is appropriate.

Then, provide the following information to conduct the study.

IV: ____________________________

DV:____________________________

H0: _______________________________________________________

H1: _______________________________________________________