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2 years ago

Select all of the values.

Mathematics

2 answers:

Allushta [10]2 years ago

3 0

the answer is B C D

tensa zangetsu [6.8K]2 years ago

3 0

Answer:

B, C, and D

Step-by-step explanation:

Please mark me brainliest

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3 years ago

The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airp

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Confidence Interval in 95% confidence level for the quality rating is (6.06,7.46)

Step-by-step explanation:

Confidence Interval can be calculated using the formula M±ME where

M is the mean of the sample
ME is the margin of error in a given confidence level

Using the sample obtained from 50 business travelers we get

Mean of the sample is 6.76
standard deviation of the sample is 2.526

Margin of error (ME) around the mean using the formula

ME= $\frac{z*s}{\sqrt{N} }$ where

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s is the standard deviation of the sample (2.526)

N is the sample size (50)

Using the numbers in the formula we get:

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Then the confidence interval becomes 6.76±0.70

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