Structural engineers use wireless sensor networks to monitor the condition of dams and bridges. The article Statistical
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a. Construct a scatterplot of frequency (y) versus damping ratio (x). Verify that a linear model is appropriate.
b. Compute the least-squares line for predicting frequency from damping ratio.
c. If two modes differ in damping ratio by 0.2, by how much would you predict their frequencies to differ?
d. Predict the frequency for modes with damping ratio 0.75.
e. Should the equation be used to predict the frequency for modes that are overdamped (damping ratio > 1)? Explain why or why not.
f. For what damping ratio would you predict a frequency of 2.0?
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