Question
In: Statistics and Probability
Kim, a personal trainer, was interested in whether or not there was a linear relationship between...
Kim, a personal trainer, was interested in whether or not there was a linear relationship between the number of visits her clients made to the gym each week and the average amount of time her clients exercised per visit. She took the following data. Client 1 2 3 4 5 6 Number of visits per week 1 3 4 2 3 5 Average time spent exercising per visit (hours) 2 1.5 1 2 2 0.30 a) Find the correlation coefficient using Excel. Round to 2 decimal places. b) Use http://www.socscistatistics.com/pvalues/pearsondistribution.aspx to calculate the P value with significance level 0.05. Round to 3 decimal places. b) Is it significant? yes or no
Solutions
orchestra answered 2 years agoRelated Solutions
Researchers were interested in whether there was a linear relationship between a person's armspan (x) and...
Researchers were interested in whether there was a linear
relationship between a person's armspan (x) and a person's height
(y). The data is shown below.
Armspan
_Height_
66
70
61.75
60
66
66
70
70
66
67
69
67
62
64
61
60
Sums:
521.75
524
a) Find the least squares line between armspan (x) and height
(y) based on the data.
??? =
??? =
b =
a =
?̂ = ___ + ___ x
b) Interpret the meaning...
A researcher is interested to learn if there is a linear relationship between the hours in...
A researcher is interested to learn if there is a linear
relationship between the hours in a week spent exercising and a
persons life satisfaction. The researchers collected the following
data from a random sample, which included the number of hours spent
exercising in a week and a ranking of life satisfaction from 1 to
10 ( 1 being the lowest and 10 the highest).
Participant Hours of Exercise Life Satisfaction
1 3 1
2 14 2
3 14 4...
A researcher is interested to learn if there is a linear relationship between the hours in...
A researcher is interested to learn if there is a linear
relationship between the hours in a week spent exercising and a
person’s life satisfaction. The researchers collected the following
data from a random sample, which included the number of hours spent
exercising in a week and a ranking of life satisfaction from 1 to
10 ( 1 being the lowest and 10 the highest). PLEASE help in
SPSS.
Participant
Hours of Exercise
Life Satisfaction
1
3
1
2
14...
***SHOW SPSS** A researcher is interested to learn if there is a linear relationship between the...
***SHOW SPSS**
A researcher is interested to learn if there is a linear
relationship between the hours in a week spent exercising and a
person’s life satisfaction. The researchers collected the following
data from a random sample, which included the number of hours spent
exercising in a week and a ranking of life satisfaction from 1 to
10 ( 1 being the lowest and 10 the highest).
Participant
Hours of Exercise
Life Satisfaction
1
3
1
2
14
2
3...
1. A researcher is interested to learn if there is a linear relationship between the hours...
1. A researcher is interested to learn if there is a linear
relationship between the hours in a week spent exercising and a
person’s life satisfaction. The researchers collected the following
data from a random sample, which included the number of hours spent
exercising in a week and a ranking of life satisfaction from 1 to
10 ( 1 being the lowest and 10 the highest). Participant Hours of
Exercise Life Satisfaction 1 3 1 2 14 2 3 14...
A personal trainer is interested in the typical physical activity of her clients. She asked a...
A personal trainer is interested in the typical physical
activity of her clients. She asked a sample of her customers how
many hours of exercise they get each week, and recorded the data
below. Describe her findings using everything you've learned about
measures of central tendency, measures of variability, and describe
the shape of the distribution
х= 2, 3, 3, 4, 4, 5, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8
A nurse is interested in whether there is a relationship between daily levels of stress and...
A nurse is interested in whether there is a relationship between
daily levels of stress and likelihood of a heart attack. The stress
scores (predictor variable) and risk of heart attack values
(criterion variable) from a small sample of participants are
depicted below.
Stress
Score Risk
of Heart Attack
(Higher values = more stress) (Higher
values = greater risk)
1 9
5 8
2 6
5 8
Set up the regression equation and use to predict the risk of heart
attack for a person with...
Car manufacturers are interested in whether there is a relationship between the size of car an...
Car manufacturers are interested in whether there is a
relationship between the size of car an individual drives and the
number of people in the driver's family (that is, whether car size
and family size are independent). To test this, suppose that 804
car owners were randomly surveyed with the following results.
Conduct a test for independence at the 5% level.
Family Size
Sub &
Compact
Mid-size
Full-size
Van &
Truck
1
20
36
41
35
2
20
49
71...
A researcher is interested in determining whether there is a relationship between the weekly number of...
A researcher is interested in determining whether there is a
relationship between the weekly number of room air-conditioning
units sold and the time of year. What type of descriptive chart
would be most useful in performing this analysis? Explain your
choice.
Car manufacturers are interested in whether there is a relationship between the size of car an...
Car manufacturers are interested in whether there is a
relationship between the size of car an individual drives and the
number of people in the driver's family (that is, whether car size
and family size are independent). To test this, suppose that 797
car owners were randomly surveyed with the following results.
Conduct a test for independence at the 5% level.
Family Size
Sub &
Compact
Mid-size
Full-size
Van &
Truck
1
19
35
41
34
2
21
49
69...
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