Chapter 11 Questions:
1. In regression analysis, we predict the value of Y from X based on a:
a. A mathematical equation
2. Which of the following denotes the slope or the regression coefficient for X?
d. The term b
3. The increase or decrease in Y expect
Chapter 7 Questions:
1. Retaining the null hypothesis assumes
There is no difference between population means
2. The larger the z-score
The greater the distance our mean difference is from zero
The more likely we are to reject the null hypothesis
The more
Chapter 8 Questions:
1. Rather than a series of t-tests, analysis of variance is used because
It holds Type I error at a constant level
2. To find a significant difference with an analysis of variance, you hope to maximize
The between-groups mean square
3
Peers, Tobacco Advertising, and Secondhand
Smoke Exposure Influences Smoking Initiation
in Diverse Adolescents
(Voorhees et al, 2011)
Purpose:
Close friends smoking behavior associated w/ adolescents smoking
progression (initiation) regardless of level of
Chapter 10 Questions:
1. When the points in a scatter plot cluster closely around the regression line, the
correlation can be said to be:
b. Strong
2. When respondents who score high on the SAT also tend to get high grades in
college, whereas those who sc
111104475
Health 300
Homework Assignment #1
6.
a. content analysis and the IV is gender and the DV is the aggressiveness of the adjectives
used by the reporters to describe the game
b. experiment and the IV is the type of tape the child is watching and th
February 11, 2012
Health 300
Homework 3
questions:5,6,9,11,13,15,22and26.
Chapter 3:
5. C
6. B
9.
a. R
b. R
c. It is inappropriate to calculate a mean for this rating because the variables for this sample are
not numerical digits.
11.
age- mean- 78.7
heal
Health 300
111104475
April 29, 2012
The research question is identifying whether the socioeconomic status is correlated with the
initiation of smoking among underage students in the Maryland community within the past year,
and how diversity plays a role i
MeasuresofCentralTendency21:37
MeasuresofCentralTendency
Average
Iftheaveragewomanisasize10,whatdoesthatreallymean?
AVERAGE
Howwouldthatbedetermined?
Whatistheaverageageincomingfreshman?
Whatistheaveragenumberofhoursyoustudy?
Whatistheaveragenumberofhou
Health 300 hw 2
February 7, 2012
Chapter 2
6. b
12.
a. 14.85%
b. 6.56%
c. proportion = .15
d. proportion = .07
e. Men are more likely to be left handed than women from these statistics.
15. There are 85.714 life births for every 1000 woman of child bearin