Question
We want to investigate how the Quality of red wine is related to Aroma. You may use the following Excel print-outs or summary statistics provided
We want to investigate how the Quality of red wine is related to Aroma.
You may use the following Excel print-outs or summary statistics provided to answer the questions.
SUMMARY OUTPUT | |||||||
Regression Statistics | |||||||
Multiple R | 0.5003 | ||||||
R Square | 0.7003 | ||||||
Adjusted R Square | 0.4864 | ||||||
Standard Error | 1.466 | ||||||
Observations | 38 | ||||||
Coefficients | Standard Error | t Stat | P-value | ||||
Intercept | 5.9583 | 1.1050 | 2.232 | 0.0000 | |||
Aroma | 1.3365 | 0.2226 | 6.004 | 0.0000 | |||
(i) Find the least squares regression line to predict the Quality from Aroma.
(ii) Find the value of the Correlation Coefficient and interpret it.
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Precalculus
Authors: Michael Sullivan
9th edition
978-0321716835
