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s2008m [1.1K]
2 years ago
14

HELP ASAP PLEASE (answer all parts please)

Mathematics
1 answer:
Dmitry [639]2 years ago
8 0
The parameter used in the probability is the average number of students represented by u.
How to calculate the probability?
The confidence interval based on the information will be:
= 3.85 - 2.09(1.348 / ✓20)
= 3.22
Also, 3.85 + 2.09(1.348 / ✓20) = 4.48
The confidence interval simply means that one is 95% confident that the true mean is between 3.22 and 4.48.
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