Question
In: Statistics and Probability
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports....
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of business travelers follow.
| 2 | 6 | 7 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 4 |
| 5 | 6 | 6 | 8 | 7 | 9 | 10 | 9 | 6 | 5 | 7 | 6 | 8 |
| 4 | 2 | 10 | 9 | 9 | 10 | 10 | 9 | 8 | 7 | 5 | 9 | 9 |
| 3 | 6 | 2 | 9 | 7 | 10 | 7 | 9 | 9 | 9 | 9 |
Develop a confidence interval estimate of the population mean rating for Miami. Round your answers to two decimal places.
( , )
Solutions
Expert Solution
Following is the output of descriptive statistics generated by excel:
Since confidence level is not given so let CL = 95%
-------------------------------------------------
If 90% confidence interval needed then
-----------------------------------------------------------
orchestra answered 2 years agoRelated Solutions
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports....
The International Air Transport Association surveys business
travelers to develop quality ratings for transatlantic gateway
airports. The maximum possible rating is 10. Suppose a simple
random sample of business travelers is selected and each traveler
is asked to provide a rating for the Miami International Airport.
The ratings obtained from the sample of business travelers follow.
3 7 8 9 10 10 10 9 9 9 9 8 5 6 7 7 9 8 10 9 8 7 6 8...
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports....
The International Air Transport Association surveys business
travelers to develop quality ratings for transatlantic gateway
airports. The maximum possible rating is 10. Suppose a simple
random sample of 50 business travelers is selected and each
traveler is asked to provide a rating for the Miami International
Airport. The ratings obtained from the sample of 50 business
travelers follow.
Click on the datafile logo to reference the data.
6 4 6 8 7 7 6 3 3 8 10 4 8...
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports....
The International Air Transport Association surveys business
travelers to develop quality ratings for transatlantic gateway
airports. The maximum possible rating is 10. Suppose a simple
random sample of 50 business travelers is selected and each
traveler is asked to provide a rating for the Miami International
Airport. The ratings obtained from the sample of 50 business
travelers follow. 7 7 3 8 4 4 4 5 5 5 5 4 9 10 9 9 8 10 4 5 4 10...
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports....
The International Air Transport Association surveys business
travelers to develop quality ratings for transatlantic gateway
airports. The maximum possible rating is 10. Suppose a simple
random sample of business travelers is selected and each
traveler is asked to provide a rating for the Miami International
Airport. The ratings obtained from the sample
of business travelers follow.
8
8
4
0
5
5
5
4
4
4
4
3
10
6
10
10
0
8
5
4
3
2
4
7
8
9...
An air transport association surveys business travelers to develop quality ratings for transatlantic gateway airports. The...
An air transport association surveys business travelers to
develop quality ratings for transatlantic gateway airports. The
maximum possible rating is 10. Suppose a simple random sample of 50
business travelers is selected and each traveler is asked to
provide a rating for a certain airport. The ratings obtained from
the sample of 50 business travelers follow.
6 4 6 8 7 6 6 3 3 7 10 4 8 7 8 7 5 9 4 8 4 3 8 5...
An air transport association surveys business travelers to develop quality ratings for transatlantic gateway airports. The...
An air transport association surveys business travelers to
develop quality ratings for transatlantic gateway airports. The
maximum possible rating is 10. Suppose a simple random sample of 50
business travelers is selected and each traveler is asked to
provide a rating for a certain airport. The ratings obtained from
the sample of 50 business travelers follow.
6
4
5
8
7
6
6
3
3
8
10
4
8
7
8
7
5
9
4
8
4
3
8
5...
he International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports....
he International Air Transport Association surveys business
travelers to develop quality ratings for transatlantic gateway
airports. The maximum possible rating is 10. Suppose a simple
random sample of 50 business travelers is selected and each
traveler is asked to provide a rating for the Miami International
Airport. The ratings obtained from the sample of 50 business
travelers follow.
4
8
9
10
1
1
1
8
8
8
8
7
6
7
8
8
10
9
1
8
7
8...
The International Air Transport Association surveyed business travellers to determine the assessment of international airports. The...
The International Air Transport Association surveyed business
travellers to determine the assessment of international airports.
The maximum possible rating was 10. Suppose a simple random sample
of 50 travelers rated Miami Airport, and another
simple random sample of 50 travelers rated Los
Angeles airport. The answers were as follows.
Miami:
6 4 6 8 7 7 6 3 3 8 10 4 8
7 8 7 5 9 5 8 4 3 8 5 5 4
4 4 8 4 5 6 2 5 9 9 8 4 8
9 9 5 9 7 8 3 10 8 9 6
Los Angeles:
10 9 6 7 8 7 9 8 10 7 6 5 7
3 5 6 8 7 10 8 4 7 8 6 9 9
5 3 1 8 9 6 8 5 4 6 10 9 8
3 2 7 9 5 3 10 3 5 10 8
With α = 0.025, perform all the steps
discussed in the course with the respective appropriate null and
alternative hypotheses...
According to the Air Transport Association of America, the average operating cost of an MD-80 jet...
According to the Air Transport Association of America, the
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Suppose the operating costs of an MD-80 jet airliner are normally
distributed with a standard deviation of $160 per hour.
(Round the value of z to 2 decimal places. Round your
answers to 2 decimal places.)
(a) At what operating cost would only 23% of
the operating costs be less?
$
(b) At what operating cost would 65% of...
According to the Air Transport Association of America, the average operating cost of an MD-80 jet...
According to the Air Transport Association of America, the
average operating cost of an MD-80 jet airliner is $2,087 per hour.
Suppose the operating costs of an MD-80 jet airliner are normally
distributed with a standard deviation of $166 per hour.
(Round the value of z to 2 decimal places. Round your
answers to 2 decimal places.)
(a) At what operating cost would only 20% of
the operating costs be less?
$enter the dollar amount at which only 20% of...
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