Question
In: Statistics and Probability
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan...
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ρ = 0 in favor of ρ ≠ 0 at α = .05? (Give your answers correct to three decimal places.)
| Population | 10.9 | 2.6 | 4.3 | 7.6 | 3.5 | 3 | 3.3 | 6.4 | 0.7 | 3.4 |
| Crime Rate | 12.7 | 6.5 | 8.7 | 7.7 | 7.4 | 7.4 | 6.6 | 6.8 | 9.1 | 8.9 |
(a) Calculate r.
(ii) Calculate the critical region.
(smaller value)
(larger value)
Solutions
orchestra answered 1 year agoRelated Solutions
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan...
The population (in millions) and the violent crime rate (per
1000) were recorded for 10 metropolitan areas. The data are shown
in the following table. Do these data provide evidence to reject
the null hypothesis that ρ = 0 in favor of ρ ≠ 0
at α = .05? (Give your answers correct to three decimal
places.)
Population
10.3
0.6
4
6.3
4.4
6.5
5.4
1.5
4.6
3.9
Crime Rate
11.1
7.1
7
7
7.4
8.7
8.7
8.1
8.8
9.5...
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan...
The population (in millions) and the violent crime rate (per
1000) were recorded for 10 metropolitan areas. The data are shown
in the following table. Do these data provide evidence to reject
the null hypothesis that ρ = 0 in favor of ρ ≠ 0
at α = .05? (Give your answers correct to three decimal
places.)
Population
9.9
2
1
7.2
0.6
6.6
0.6
7
6.5
0.6
Crime Rate
11.3
9
7.5
8.8
7.3
7.2
7.4
6.7
7.7
6.8...
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan...
The population (in millions) and the violent crime rate (per
1000) were recorded for 10 metropolitan areas. The data are shown
in the following table. Do these data provide evidence to reject
the null hypothesis that ρ = 0 in favor of ρ ≠ 0
at α = .05? (Give your answers correct to three decimal
places.)
Population
9.7
0.2
3.2
7.2
0.5
3.7
4.8
3.3
2.2
3.5
Crime Rate
13
8.7
8.8
9.2
6.8
8.4
9.3
7
7.1
6.6...
1) Using the excel data file “US violent crime” which shows the violent crime rate in...
1) Using the excel data file “US violent crime” which shows the
violent crime rate in the US from 1960 to 2012:
(20 pts) Make a time series plot of the data
(5 pts each 25 pts total) Determine the following: Mean, Median,
Standard deviation, Q1 and Q3. (25 pts)
Make a histogram of the data. Hint the year is not used, you
need to determine how many years fall into each of the classes.
(7) What are your thoughts...
Does prison really deter violent crime? Let x represent percent change in the rate of violent...
Does prison really deter violent crime? Let x represent
percent change in the rate of violent crime and y
represent percent change in the rate of imprisonment in the general
U.S. population. For 7 recent years, the following data have been
obtained.
x
5.9
5.7
4.1
5.2
6.2
6.5
11.1
y
−1.8
−4.1
−7.0
−4.0
3.6
−0.1
−4.4
A.given Σx = 44.7, Σy =
−17.8,Σx2 = 315.05, Σy2 =
117.38, Σxy = −110.66, and r ≈
0.065.
Verify the given...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.† 63.2 36.3 26.2 53.2
65.3 32.0 65.0 66.3 68.9 35.2 25.1 32.5 54.0 42.4 77.5 123.2 66.3
92.7 56.9 77.1 27.5 69.2 73.8 71.5 58.5 67.2 78.6 33.2 74.9 45.1
132.1 104.7 63.2 59.6 75.7 39.2 69.9 87.5 56.0 154.2 85.5 77.5 84.7
24.2 37.5 41.1 (a) Use a calculator with mean and sample standard
deviation keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.† 63.2 36.3 26.2 53.2
65.3 32.0 65.0 66.3 68.9 35.2 25.1 32.5 54.0 42.4 77.5 123.2 66.3
92.7 56.9 77.1 27.5 69.2 73.8 71.5 58.5 67.2 78.6 33.2 74.9 45.1
132.1 104.7 63.2 59.6 75.7 39.2 69.9 87.5 56.0 154.2 85.5 77.5 84.7
24.2 37.5 41.1 (a) Use a calculator with mean and sample standard
deviation keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.†
63.2
36.3
26.2
53.2
65.3
32.0
65.0
66.3
68.9
35.2
25.1
32.5
54.0
42.4
77.5
123.2
66.3
92.7
56.9
77.1
27.5
69.2
73.8
71.5
58.5
67.2
78.6
33.2
74.9
45.1
132.1
104.7
63.2
59.6
75.7
39.2
69.9
87.5
56.0
154.2
85.5
77.5
84.7
24.2
37.5
41.1
(1) Use a calculator with mean and sample standard deviation
keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.†
63.2
36.3
26.2
53.2
65.3
32.0
65.0
66.3
68.9
35.2
25.1
32.5
54.0
42.4
77.5
123.2
66.3
92.7
56.9
77.1
27.5
69.2
73.8
71.5
58.5
67.2
78.6
33.2
74.9
45.1
132.1
104.7
63.2
59.6
75.7
39.2
69.9
87.5
56.0
154.2
85.5
77.5
84.7
24.2
37.5
41.1
(a) Use a calculator with mean and sample standard deviation
keys to find the sample mean x...
The following data represent crime rates per 1000 population for a random sample of 46 Denver...
The following data represent crime rates per 1000 population for
a random sample of 46 Denver neighborhoods.†
63.2
36.3
26.2
53.2
65.3
32.0
65.0
66.3
68.9
35.2
25.1
32.5
54.0
42.4
77.5
123.2
66.3
92.7
56.9
77.1
27.5
69.2
73.8
71.5
58.5
67.2
78.6
33.2
74.9
45.1
132.1
104.7
63.2
59.6
75.7
39.2
69.9
87.5
56.0
154.2
85.5
77.5
84.7
24.2
37.5
41.1
(a) Use a calculator with mean and sample standard deviation
keys to find the sample mean x...
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