Question

For 40 eruptions of the Old Faithful geyser in Yellowstone National Park, duration times (sec) were recorded along with the time intervals (min) to the next eruption. The paired durations and interval times were used to obtain the results shown in the accompanying STATDISK display. Is there sufficient evidence to support the claim that there is a linear correlation between the durations of eruptions and the time intervals to the next eruptions? Explain.
Use a significance level of a = 0.05.


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  • CreatedMay 03, 2015
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