Question
In: Math
1) Volatility (variation) of investment rates is an important consideration for investors. The following data represent...
1) Volatility (variation) of investment rates is an important consideration for investors. The following data represent the rate of return (%) for some mutual funds for the past 12 years, (like Sullivan, 5e, p 454, #16c). Determine the 95% confidence interval for the population standard deviation. 2 1 / 2 2 2 / 2 2 ( 1) / ( 1) / n s n s (d.f. = n-1) 12.8 15.9 10.0 12.4 14.3 6.6 9.6 12.4 10.3 8.7 14.9 6.7
A) 2.2 < σ < 5.2
B) 2.3 < σ < 4.9
C) 3.2 < σ < 5. 6
D) 2.0 < σ < 5.9
Solutions
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5.2
milcah answered 6 months agoRelated Solutions
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The following data represent the probability distribution of the holding period returns for an investment in...
The following data represent the probability distribution of the
holding period returns for an investment in Lazy Rapids Kayaks
(LARK) stock.
State of the Economy
Scenario #(s)
Probability, p(s)
HPR
Boom
1
0.328
30.00%
Normal growth
2
0.402
9.40%
Recession
3
0.27
-18.30%
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(Round your answer to 2 decimal places.)
Expected
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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
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The following data represent crime rates per 1000 population for a random sample of 46 Denver...
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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...
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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