Question
In: Statistics and Probability
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should keep you warm in temperatures from 20°F to 45°F. A random sample of prices ($) for sleeping bags in this temperature range is given below. Assume that the population of x values has an approximately normal distribution.
| 110 | 35 | 80 | 90 | 65 | 80 | 30 | 23 | 100 | 110 |
| 105 | 95 | 105 | 60 | 110 | 120 | 95 | 90 | 60 | 70 |
(a) Use a calculator with mean and sample standard deviation keys to find the sample mean price x and sample standard deviation s. (Round your answers to two decimal places.)
| x = | –––––$ |
| s = | –––––$ |
(b) Using the given data as representative of the population of
prices of all summer sleeping bags, find a 90% confidence interval
for the mean price μ of all summer sleeping bags. (Round
your answers to two decimal places.)
| lower limit | –––––$ |
| upper limit | –––––$ |
Solutions
orchestra answered 2 years agoRelated Solutions
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of x values has an
approximately normal distribution. 65 75 35 65 70 60 30 23 100 110
105 95 105 60 110 120 95 90 60 70 (a) Use a calculator with mean
and...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of x
values has an approximately normal distribution.
90
65
110
35
95
50
30
23
100
110
105
95
105
60
110
120
95
90
60
70
(a) Use a calculator with mean and...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of x
values has an approximately normal distribution.
90
65
95
70
55
65
30
23
100
110
105
95
105
60
110
120
95
90
60
70
(a) Use a calculator with mean and...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of x
values has an approximately normal distribution.
45
50
115
115
40
100
30
23
100
110
105
95
105
60
110
120
95
90
60
70
(a) Use a calculator with mean and...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of x values has an
approximately normal distribution. 105 80 45 35 105 65 30 23 100
110 105 95 105 60 110 120 95 90 60 70
(a) Use a calculator with mean and...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of x
values has an approximately normal distribution.
35
120
70
65
90
40
30
23
100
110
105
95
105
60
110
120
95
90
60
70
(a) Use a calculator with mean and...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of x
values has an approximately normal distribution.
45
65
105
110
120
55
30
23
100
110
105
95
105
60
110
120
95
90
60
70
(a) Use a calculator with mean and...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of x
values has an approximately normal distribution.
35
110
40
100
65
70
30
23
100
110
105
95
105
60
110
120
95
90
60
70
(a) Use a calculator with mean and...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of x
values has an approximately normal distribution.
75
95
55
105
110
115
30
23
100
110
105
95
105
60
110
120
95
90
60
70
(a) Use a calculator with mean and...
How much does a sleeping bag cost? Let's say you want a sleeping bag that should...
How much does a sleeping bag cost? Let's say you want a sleeping
bag that should keep you warm in temperatures from 20°F to 45°F. A
random sample of prices ($) for sleeping bags in this temperature
range is given below. Assume that the population of
xvalues has an approximately normal distribution.
110
115
120
85
70
65
30
23
100
110
105
95
105
60
110
120
95
90
60
70
(a) Use a calculator with mean and sample...
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