Textbook ExpertVerified Tutor
20 Dec 2021
Given information
A maximum delay of 15 minutes is expected.
The difference is less than 150 minutes.
Calculates his next 25 flights delays.
With a standard deviation of 15 minutes, the average delay for those 25 flights is 22 minutes.
Step-by-step explanation
Step 1.
Null Hypothesis 
: The difference between two statements is null, or zero. Whether the null hypothesis is the initial assertion or not, it is the null hypothesis that is tested.
Alternative Hypothesis 
: If the null hypothesis is false, this assertion must be true.
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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
Solutions
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