Chirping Crickets In Exercise 3.18,we found that male crickets chirp by rubbingtheir
Chapter 12, Problem 23(choose chapter or problem)
Chirping Crickets In Exercise 3.18,we found that male crickets chirp by rubbingtheir front wings together, and their chirping is temperaturedependent. The table below shows the number ofchirps per second for a cricket, recorded at 10 differenttemperatures:Chirps per Second 20 16 19 18 18 16 14 17 15 16Temperature 88 73 91 85 82 75 69 82 69 83a. Use the formulas given in this chapter to find theleast-squares regression line relating the number ofchirps to temperature. Compare to the resultsobtained in Exercise 3.18.b. Do the data provide sufficient evidence to indicatethat there is a linear relationship between number ofchirps and temperature?c. Calculate r 2. What does this value tell you aboutthe effectiveness of the linear regression analysis?
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