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Question Continue: Based on your interpretation of the residual plot. 2.80 Least-squares regression for radioactive decay. Refer to Exercise 2.22 (page 90) for the data

Question Continue: Based on your interpretation of the residual plot.

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2.80 Least-squares regression for radioactive decay. Refer to Exercise 2.22 (page 90) for the data on radioactive decay of barium-137m. Here are the data: DECAY Time 1 3 5 7 Count 578 317 203 118 a. Using the least-squares regression equation count = 602.8 - (74.7 x time) and the observed data, find the residuals for the counts. b. Plot the residuals versus time. c. Write a short paragraph assessing the fit of the least-squares regression line to these data, age 730 570

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