Gross Whittaker
06/25/2023 · High School
d) Calculate the least squares line. Put the equation in the form of: \( \hat{y}=a+b x \). e) Find the correlation coefficient. Is the decrease in times significant? f) Find the estimated gold medal time for 1932. Find the estimated time for 1984 . g) Why are the answers from part f different from the chart values? h) Does it appear that a line is the best way to fit the data? Why or why not? i) Use the least-squares line to estimate the gold
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d) Calculate the least squares line: \( \hat{y} = 12.2 + 0.015x \).
e) Find the correlation coefficient and assess the significance of the decrease in times.
f) Estimate gold medal times for 1932 and 1984 using the line.
g) Explain why the estimated times differ from chart values.
h) Determine if a line is the best fit for the data.
i) Estimate gold medal times using the least-squares line.
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