The data show the time intervals after an eruption (to the next eruption) of a c
ID: 3379090 • Letter: T
Question
The data show the time intervals after an eruption (to the next eruption) of a certain geyser. Find the regression equation, letting the first variable be the independent (x) variable. Find the best predicted time of the interval after an eruption given that the current eruption has a height of 92 feet. Use a significance level of 0.05.
Height (ft) Interval after (min)
70 69
73 62
104 82
122 91
74 71
107 84
76 68
97 75
What is the regression equation?
Y = _____ + _____ x
Explanation / Answer
Using technology, we get
slope = 0.468980216
intercept = 32.86591299
Thus, the regression line is
y^ = 32.86591299 + 0.468980216x [ANSWER]
**********************************
Thus, if x = 92
Then
y^ = 76.01209285 [ANSWER]
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