× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Science-Related Homework Help Psychology
New Topic  
Mrpkerzz Mrpkerzz
wrote...
Go to Answer
Posts: 491
Rep: 0 0
6 years ago
A regression analysis of hours spent exercising and ounces of weight loss had a slope of 3. We would predict that
 
  a. for every 1 hour of exercise, a person would lose 3 ounces of weight.
  b. for every ounce lost, a person has to exercise for 7 hours.
  c. every hour of exercise would have no effect on weight.
  d. The slope cannot be used to make predictions, you need the intercept.

Question 2

An example in the text hypothesized that 4 of the variability in life expectancy was accounted for by variability in smoking behavior. The values of r and r2, respectively, are equal to
 
  a. .20 and .04.
  b. .04 and .16.
  c. .04 and .20.
  d. More information is needed.

Question 3

In a scatterplot, an outlier is one that
 
  a. is far to the left of the display.
  b. is in the center of the display.
  c. is far from the regression line.
  d. is the largest value of Y.
Read 48 times
1 Reply
Replies
Answer verified by a subject expert
sosobonsosobon
wrote...
#1
Top Poster
Posts: 582
Rep: 1 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Mrpkerzz Author
wrote...

6 years ago
Brilliant ツ
rudy.zondo
wrote...

Yesterday
Thanks for your help!!
vanna2014
wrote...

2 hours ago
This calls for a celebration Person Raising Both Hands in Celebration
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1316 People Browsing
 111 Signed Up Today
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 247
  
 25
  
 1371
Your Opinion
How often do you eat-out per week?
Votes: 79
Previous poll results: Which country would you like to visit for its food?