Mathematics, 13.05.2021 18:00 lol1516

Assume the distribution of times that a swimmer can hold their breath is normally distributed. A random sample of 4 people timed how long they could hold their breath. The results were: 3 seconds
87 seconds
109.4 seconds
120.6 seconds

Required:
Find a 83% confidence interval for the average amount of time a person can hold their breath.

Answers: 2

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