Question
In: Advanced Math
An environmentalist wants to determine the relationship between the number of fires, in thousands, and the...
An environmentalist wants to determine the relationship between the number of fires, in thousands, and the number of acres burned, in hundreds of thousands. Based on this data, decide if the correlation is significant at alpha = 0.05. Number of fires x 73 74 58 48 80 65 54 49 Number of acres burned y 64 46 22 23 51 12 29 10
5. When x = 61 what is y and what does it mean I this context.
6. Determine r^2.
7. Determine Sset.
8. Find the 95% prediction interval when x = 61.
Solutions
Colby Messinger answered 1 year agoRelated Solutions
An environmentalist wants to determine the relationship between the number of fires in thousands, and the...
An environmentalist wants to determine the relationship between
the number of fires in thousands, and the number of acres burned in
hundreds of thousands. Based on the data, decide in the correlation
is significant at alpha = 0.05.
Number of fires (x) - 73 | 74 | 58 | 48 | 80 | 65 | 54 | 49
Number of acres burned (y) - 64 | 46 | 22 | 23 | 51 | 12 | 29 |
10
Determine...
An environmentalist wants to determine the relationship between the number of fires in thousands, and the...
An environmentalist wants to determine the
relationship between the number of fires in thousands, and the
number of acres burned in hundreds of thousands. Based on the data,
decide in the correlation is significant at alpha = 0.05.
Number of fires (x) - 73 | 74 | 58 | 48 | 80 | 65 | 54
| 49
Number of acres burned (y) - 64 | 46 | 22 | 23 | 51 |
12 | 29 | 10
Find...
An environmentalist wants to determine the relationship between the number of fires, in thousands, and the number of acres burned, in hundreds of thousands.
An environmentalist wants to determine the relationship between the number of fires, in thousands, and the number of acres burned, in hundreds of thousands. Based on this data, decide if the correlation is significant at alpha = 0.05.
Number of fires x
73
74
58
48
80
65
54
49
Number of acres burned y
64
46
22
23
51
12
29
10
1. Draw a scatter plot of the data.
2. Showing all work calculate r.
3. Showing...
Numbers (in thousands) of forest fires over the year and the number (in hundred thousands) of...
Numbers (in thousands) of forest fires over the year and the
number (in hundred thousands) of aces burned for 7 recent years are
shown.
Number of fires (x): 72 69 58 47 84 62 57
Number of acres burned (y): 73 70 59 48 85 63 58
The correlation coefficient for the data is r = 1 and standard
deviation = 0.05.
Should the regression analysis be done?
Find the equation of the regression line. Round to three decimal
places....
The ministry of Health wishes to determine if there is a relationship between the number of...
The ministry of Health wishes to determine if there is a
relationship between the number of cigarettes smoked daily and life
time health care costs The result of six sample smokers is recorded
below.
Number of Cigarettes
Health Costs (in thousands$)
30
43
40
45
50
54
60
53
70
56
80
63
Calculate the correlation coefficient
Test is the correlation coefficient is different from zero (.01
level)
Create the Ordinary Least Squares regression line
Discuss the assumptions that you...
A researcher wants to determine if there is a linear relationship between height and weight. The...
A researcher wants to determine if there is a linear
relationship between height and weight. The following table
represents the data collected. Display the data in a scatter plot
on your calculator, draw a quick sketch below. Then find the linear
regression and put the line of best fit on the sketch. Then state
the value for the correlation coefficient and determine if this is
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back of the book....
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Stories (x) 64 54 40 31 45 38 42 41 37 40
Height (y) 841 725 635 616 615 582 535 520 511 485
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A study is conducted to determine the relationship between a driver's age and the number of...
A study is conducted to determine the relationship between a
driver's age and the number of accidents he or she has over a
1-year period. The data are shown here. If there is a significant
relationship, predict the number of accidents of a driver who is
28.
Driver's
No. of
Age x
accidents y
16
3
24
2
18
5
17
2
23
0
27
1
32
1
Predict y' for a specific value of x, if the relationship is...
A study is conducted to determine the relationship between a driver's age and the number of...
A study is conducted to determine the relationship between a
driver's age and the number of accidents he or she has over a
1-year period. The data are shown here. If there is a significant
relationship, predict the number of accidents of a driver who is
28.
Driver's
No. of
Age x
accidents y
16
3
24
2
18
5
17
2
23
0
27
1
32
1
For steps 4 and 5 of the hypothesis testing, what is your...
A study is conducted to determine the relationship between a driver's age and the number of...
A study is conducted to determine the relationship between a
driver's age and the number of accidents that he or she has had
over a 1-year period.
The data from this study is in the table:
Age 16 24 18 17 23 27 32
Accidents 3 2 5 2 0 1 1
The correlation coefficient for this problem is
There is/ is not evidence of significant correlation at the 5%
significance level
The best estimate for the number of accidents...
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