The data show the time intervals after an eruption (to the next eruption) of a c

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

105 feet. Use a significance level of 0.05.

Height (ft)       Interval after (min)

115      75

133      85

137      94

140      85

99        66

112      88

108      68

126      82

What is the regression equation?

Y_____ + _____ x

Explanation / Answer

Using technology, we get              
              
slope =    0.520893603          
intercept =    17.21665059          
              
Thus, the regression line is              
              
y^ = 17.21665059 + 0.520893603 x [ANSWER]

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