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If a geyser has a mean time between eruptions of 67 minutes, with a normal standard deviation of 26, I need to answer these: What
If a geyser has a mean time between eruptions of 67 minutes, with a normal standard deviation of 26, I need to answer these:
- What is the probability that a randomly selected time interval between eruptions is longer than 80 minutes? My answer is .3085. And if that is correct, I've lost my brain about how to do the rest.
- What is the probability that a random sample of 7 time intervals between eruptions has a mean longer than 80 minutes?
- What is the probability that a random sample of 22 time intervals between eruptions has a mean longer than 80 minutes?
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Numerical Analysis
Authors: Richard L Burden, J Douglas Faires, Annette M Burden
10th Edition
1305465350, 9781305465350
