Question
In: Math
81 2/3% of ______barrels is 60 barrels?
81 2/3% of ______barrels is 60 barrels?
Solutions
Expert Solution
2/3% * x = 60
or, 2/300 * x = 60
or, x = 60 * 300/2
or, x = 9000
milcah answered 3 years agoRelated Solutions
Let the random variable X follow a normal distribution with ?= 60 and sigma ?2= 81....
Let the random variable X follow a normal distribution with ?=
60 and sigma ?2= 81.
a. Find the probability that X is greater than 70.
b. Find the probability that X is greater than 45 and less than
71.
c. Find the probability that X is less than 65.
d. The probability is 0.2 that X is greater than what?
number?
e. The probability is 0.03 that X is in the symmetric interval
about the mean between which two?...
Sample Size No. Defective 1 80 4 2 72 2 3 68 3 4 81 3...
Sample
Size
No. Defective
1
80
4
2
72
2
3
68
3
4
81
3
5
75
4
6
70
4
7
82
5
8
64
1
9
73
1
10
78
5
11
70
3
12
74
4
13
83
1
14
76
12
15
66
4
16
70
7
17
71
4
18
82
7
19
73
4
20
67
6
21
80
2
22
79
7
23
81
2
24
81
4
25
78
4
26...
chandler Oil has 5000 barrels of crude oil 1 and 10,000 barrels of crude oil 2...
chandler Oil has 5000 barrels of crude oil 1 and 10,000 barrels
of crude oil 2 available. Chandler sells gasoline and heating oil.
These products are produced by blending the two crude oils
together. Each barrel of crude oil 1 has a quality level of 10 and
each barrel of crude oil 2 has a quality level of 5.6 Gasoline must
have an average quality level of at least 8, whereas heating oil
must have an average quality level of...
2) A country imports 3 billion barrels of crude oil per year and domestically produces another...
2) A country imports 3 billion barrels of crude oil per year and
domestically produces another 3 billion barrels of crude oil per
year. The world price of crude oil is $90 per barrel. Assuming
linear schedules, economists estimate the price elasticity of
domestic supply to be 0.25 and the price elasticity of domestic
demand to be -0.5 at the current equilibrium.
a. Consider the changes in social surplus that would result from
imposition of a $30 per barrel import...
Person Height Weight 1 60 114 2 60 60 3 61 200 4 62 240 5...
Person
Height
Weight
1
60
114
2
60
60
3
61
200
4
62
240
5
63
133
6
63
220
7
64
104
8
65
135
9
65
120
10
65
123
11
66
113
12
66
205
13
66
54
14
67
170
15
67
186
16
67
198
17
67
132
18
68
142
19
69
150
20
69
188
21
70
199
22
70
201
23
70
106
24
71
112
25
71
115
26
72...
A sample of 81 60-watt lightbulbs produced by Dynamics, Inc. obtained a mean lifetime of 1347...
A sample of 81 60-watt lightbulbs produced by Dynamics, Inc.
obtained a mean lifetime of 1347 hours with a variance of 729
hours. A sample of 50 60-watt lightbulbs produced by National
Electronics Corporation obtained a mean lifetime of 1282 hours with
a variance of 800 hours.
a) Calculate a 99% confidence interval for μ1- μ2, the
difference between the true mean lifetimes of the two type of
lightbulbs. Answer to one decimal place, the lower bound and the
upper...
A sample of 81 60-watt lightbulbs produced by Dynamics, Inc. obtained a mean lifetime of 1347...
A sample of 81 60-watt lightbulbs produced by Dynamics, Inc.
obtained a mean lifetime of 1347 hours with a variance of 729
hours. A sample of 50 60-watt lightbulbs produced by National
Electronics Corporation obtained a mean lifetime of 1282 hours with
a variance of 800 hours.
a) Calculate a 99% confidence interval for μ1- μ2, the
difference between the true mean lifetimes of the two type of
lightbulbs. Answer to one decimal place, the lower bound and the
upper...
A country imports 3 billion barrels of crude oil per year and domestically produces another 3...
A country imports 3 billion barrels of crude oil per year and
domestically produces another 3 billion barrels of crude oil per
year. The world price of crude oil is $90 per barrel. An imposition
of a $30 per barrel import fee on crude oil that would involve
annual administrative costs of $250 million. Assume that the world
price will not change because of the country imposing the import
fee, but that the domestic price will increase by $30 per...
A country imports 3 billion barrels of crude oil per year and domestically produces another 3...
A country imports 3 billion barrels of crude oil per year and
domestically produces another 3 billion barrels of crude oil per
year. The world price of crude oil is $18 per barrel. Assuming
linear schedules, economists estimate the price elasticity of
domestic supply to be 0.25 and the price elasticity of domestic
demand to be − 0.10 in the neighbourhood of the current
equilibrium. a. Assuming that the world price of crude oil does not
change when the country...
Find the range, mean, median, mode for the following scores: 82, 60, 78, 81, 65, 72,...
Find the range, mean, median, mode for the following scores:
82, 60, 78, 81, 65, 72, 72, 78
Complete the Table then find the variance and standard
deviation. Show the formulas and your substitution for both.
Scores
Mean
Deviation
Deviation2
82
73.5
60
78
81
65
72
72
78
Totals
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