Question
In: Statistics and Probability
Researchers have collected data on the hours of television watched in a day and the age...
Researchers have collected data on the hours of television
watched in a day and the age of a person. You are given the data
below.
|
Hours of Television |
Age (in years) |
|
1 |
45 |
|
3 |
30 |
|
4 |
22 |
|
3 |
25 |
|
6 |
5 |
| a. | Determine the dependent variable. |
| b. | Compute the least squares estimated regression equation. |
| c. | Is there a significant relationship between the two variables? Use a t test and a .05 level of significance. Be sure to state the null and alternative hypotheses. |
| d. | Compute the coefficient of determination. How would you interpret this value? |
| For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). |
Solutions
orchestra answered 3 years agoRelated Solutions
Researchers have collected data on the hours of television watched in a day and the age...
Researchers have collected data on the hours of television
watched in a day and the age of a person. They have taken 6
samples. A linear regression analysis has already been run on this
data. Here are the partial results:
Analysis of variance (Hours of Television):
Source
DF
Sum of squares
Mean squares
F
Pr > F
Model
10.939
Error
Total
13.333
Model parameters (Hours of Television):
Source
Value
Standard error
t
Pr > |t|
Lower...
A researcher collected data on the hours of TV watched per day from a sample of...
A researcher collected data on the hours of TV watched
per day from a sample of five people of different ages. Here are
the results:
i
Age
TV Hrs
1
43
1
2
30
6
3
22
4
4
20
3
5
5
6
Create an ANOVA table. Using α = .05use the results in the table
to give a conclusion about whether or not there is a statistically
significant linear relationship between the two variables. Your
score will be...
he number of hours of television watched per day by a sample of 28 people is...
he number of hours of television watched per day by a sample of
28 people is given below: 4, 1, 5, 5, 2, 5, 4, 4, 2, 3, 6, 8, 3, 5,
2, 0, 3, 5, 9, 4, 5, 2, 1, 3, 4, 7, 2, 9
-What percent of people watched more than four hours of
television per day? (Type the percentage rounded to one decimal
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Researchers have collected data from a random sample of six students on the number of hours...
Researchers have collected data from a random sample of six
students on the number of hours spent studying for an exam and the
grade received on the exam as given in Table 6.5.
Table 6.5
Observation
Grade
Number of Hours Studying
1
85
8
2
73
10
3
95
13
4
77
5
5
68
2
6
95
12
d) Find and interpret a 90% confidence interval for the true
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The number of hours 12 students watched television during the weekend and the scored of each...
The number of hours 12 students
watched television during the weekend and the scored of each
student who took a test the following Monday are listed below.
Hours
0
1
2
3
3
5
5
5
6
7
7
10
Test
96
85
82
74
87
68
76
70
66
65
75
50
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We discovered that 650 GSS respondents in 2006 watched television for an average of 2.98 hrs/day,...
We discovered that 650 GSS respondents in 2006 watched
television for an average of 2.98 hrs/day, with a standard
deviation of 2.4 hours. Answer the following questions, assuming
the distribution of the number of television hours is normal. What
is the Z score for a person who watches more than 8 hrs/day. What
proportion of people watch 5 hrs/day or more television? How many
does this correspond to in the sample? What number of television
hours per day corresponds to...
We discovered that 650 GSS respondents in 2006 watched television for an average of 2.98 hrs/day,...
We discovered that 650 GSS respondents in 2006 watched
television for an average of 2.98 hrs/day, with a standard
deviation of 2.4 hours. Answer the following questions, assuming
the distribution of the number of television hours is normal. What
is the Z score for a person who watches more than 8 hrs/day. What
proportion of people watch 5 hrs/day or more television? How many
does this correspond to in the sample? What number of television
hours per day corresponds to...
Researchers wish to know if the data they have collected provide sufficient evidence to indicate a...
Researchers wish to know if the data
they have collected provide sufficient evidence to indicate a
difference in mean serum uric acid levels between normal
individuals and individuals with Down’s syndrome The data consist
of serum uric acid readings on 12 individuals with Down’s syndrome
and 15 individuals without Down’s syndrome. The means are
x1=4.5 mg/100 ml for those with Down’s
syndrome and x2=3.4 mg/100 ml for those
without. s1 = 1.0 and s2 = 1.2.
Researchers wish to know if the data they have collected provide sufficient evidence to indicate a...
Researchers wish to know if the data they have collected provide
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acid levels between normal individuals and individuals with Down’s
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individuals with Down’s syndrome and 15 individuals without Down’s
syndrome. The means are x1=4.5 mg/100 ml
for those with Down’s syndrome and
x2=3.4 mg/100 ml for those without.
s1 = 1.0 and s2 = 1.2.
a. State whether the...
Researchers have collected data that shows a relationship between eating french fries and the risk of...
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https://www.washingtonpost.com/news/food/wp/2017/06/16/those-french-fries-could-kill-you-a-new-study-says-but-dont-panic/?noredirect=on&utm_term=.4b17fa0c8676
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