Question
In: Statistics and Probability
The following data set shows the number of chirps in one minute from a cricket and...
The following data set shows the number of chirps in one minute from a cricket and the temperature outside (in degrees Fahrenheit):
| Chirps per Minute | Temperature |
|---|---|
| 104 | 56.2 |
| 115 | 67 |
| 130 | 74.8 |
| 135 | 60.6 |
| 142 | 69.4 |
| 143 | 61.1 |
| 152 | 69 |
| 164 | 74 |
| 166 | 78.5 |
What is the rank correlation coefficient? (Round to three decimal places.)
What is the critical rho value at a 0.01 significance?
Do we have correlation?
- No, the rank correlation coefficient is smaller (in absolute value) than the critical rho value.
- No, the rank correlation coefficient is larger (in absolute value) than the critical rho value.
- Yes, the rank correlation coefficient is smaller (in absolute value) than the critical rho value.
- Yes, the rank correlation coefficient is larger (in absolute value) than the critical rho value.
Solutions
Expert Solution
the rank correlation coefficient
rs = 0.6
What is the critical rho value at a 0.01 significance?
Do we have correlation?
No, the rank correlation coefficient is smaller (in absolute value) than the critical rho value.
( Refer following table for critical value )
orchestra answered 2 years agoRelated Solutions
The following data set shows the number of chirps in one minute from a cricket and...
The following data set shows the number of chirps in one minute
from a cricket and the temperature outside (in degrees
Fahrenheit):
Chirps per Minute
Temperature
98
58.4
107
67.5
111
54.4
112
67.2
113
68.4
120
62.2
123
76
129
69.3
137
65.9
140
66
142
67.2
148
64.7
151
80.4
158
76.4
165
84.5
What is the rank correlation coefficient? (Round to
three decimal places.)
What is the critical rho value at a 0.01 significance?
Do we have correlation?...
Given the following data of temperature (x) and the number of times a cricket chirps in...
Given the following data of temperature (x) and the number of
times a cricket chirps in a second (y), run regression analysis and
state the regression equation as long as there is a statistically
significant linear relationship between the variables.
Cricket Chirps per Second
Temperature (F)
20
88.6
16
71.6
19.8
93.3
18.4
84.3
17.1
80.6
15.5
75.2
14.7
69.7
17.1
82
15.4
69.4
16.2
83.3
15
79.6
17.2
82.6
16
80.6
17
83.5
14.4
76.3
1:) The dataset shows 15 observations of the relationship between cricket chirps (measured in chirps per...
1:)
The dataset shows 15 observations of the relationship between
cricket chirps (measured in chirps per second) and outside ground
temperature (in Fahrenheit).
A. Create a scatterplot by putting chirps on the vertical axis
and temperature on the horizontal axis. Be sure to properly label
the scatterplot with a title, axes titles, and the proper units of
the variables.
B. Estimate the following relationship:
?h????=?0+?1???????????(Chirps)
̂=b_0+b_1 Temperature.
C. Interpret the slope in the context of the problem.
D. Interpret the...
The following given set of data shows a set of 15-minute kW demands for four customers...
The following given set of data shows a set of 15-minute kW
demands for four customers over a 24-hour period. A 25kVA
single-phase transformer serves all the customers.
(a) Find the maximum 15-minute demand for each customer and the
average 15-minute demand for each customer
(b) Find the total kWh usage and the load factor for each
customer.
(c) For the 25kVA transformer, compute the maximum 15-minute
coincident demand, the maximum 15-minute non-coincident demand and
the load diversity.
Time
Cust...
You have a dataset of the average number of chirps per minute for a sample of...
You have a dataset of the average number of chirps per minute
for a sample of 30 crickets. You find that the mean number of
chirps per minute is 40 and that the number of chirps per minute
has a standard deviation of 5 chirps. You want to test that the
mean number of chirps per minute for a cricket is greater than 38
using a significance level of .05. What is the value of your test
statistic? Round your...
10. The data show the bug chirps per minute at different temperatures. Find the regression equation,...
10. The data show the bug chirps per minute at different
temperatures. Find the regression equation, letting the first
variable be the independent (x) variable. Find the best predicted
temperature for a time when a bug is chirping at the rate of 3000
chirps per minute. Use a significance level of 0.05. What is wrong
with this predicted value?
Chirps in 1 min Temperature (°F)
985 83.8
1087 85.2
867 74.7
1060 83.2
764 64.9
807 65.5
What is the...
The data show the bug chirps per minute at different temperatures. Find the regression equation, letting...
The data show the bug chirps per minute at different
temperatures. Find the regression equation, letting the first
variable be the independent (x) variable. Find the best predicted
temperature for a time when a bug is chirping at the rate of 3000
chirps per minute. Use a significance level of 0.05. What is wrong
with this predicted value? Chirps in 1 min 1242, 1034, 1171, 799,
1217, 1060 Temperature (degreesF) 92.9, 77.2, 87, 73.7, 95.3,
80.1 What is the regression...
The data show the bug chirps per minute at different temperatures. Find the regression equation, letting...
The data show the bug chirps per minute at different
temperatures. Find the regression equation, letting the first
variable be the independent (x) variable. Find the best predicted
temperature for a time when a bug is chirping at the rate of 3000
chirps per minute. Use a significance level of 0.05. What is wrong
with this predicted value?
Chirps in 1 min
1133
1037
1230
854
1157
894
Temperature
(degrees°F)
85.4
86.6
92.1
74.2
85.5
79.5
What is the regression...
The data show the bug chirps per minute at different temperatures. Find the regression equation, letting...
The data show the bug chirps per minute at different
temperatures. Find the regression equation, letting the first
variable be the independent (x) variable. Find the best predicted
temperature for a time when a bug is chirping at the rate of 3000
chirps per minute. Use a significance level of 0.05. What is wrong
with this predicted value? Chirps in 1 min 810 1149 841 1013 863
930 Temperature (degreesF) 68.2 88.3 73.5 84.6 75.6 74.3 What is
the regression...
The data show the bug chirps per minute at different temperatures. Find the regression equation, letting...
The data show the bug chirps per minute at different
temperatures. Find the regression equation, letting the first
variable be the independent (x) variable. Find the best predicted
temperature for a time when a bug is chirping at the rate of 3000
chirps per minute. Use a significance level of 0.05. What is wrong
with this predicted value?
Chirps in 1 min
758
1226
1021
1221
1182
1178
Temperature
(degrees°F)
65.1
92.8
84.3
94.9
85.5
91.2
What is the regression...
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