Textbook ExpertVerified Tutor
18 Dec 2021
Given information
In a doctor's office, the standard variance of waiting time is minutes.
The sample size is people, and the standard deviation of the sample's waiting durations is minutes.
Step-by-step explanation
Step 1.
At a level of significance, the hypothesis is tested if the standard deviation of waiting time is more than minutes.
The null and alternative hypothesis is given by,
The degree of freedom can be determined using the formula:
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