We study how does family size effect monthly expense on food. We collected a sample about...

 

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We study how does family size effect monthly expense on food. We collected a sample about family size and expense as follow: family size (x) : 6, 2, 4, 3, 5, 4 expense (y, in $1000): 3.2, 1.4, 2.5, 2.0, 3.6, 2.8 Σχ- 24, Σπ = 15.5 , Σ xιν - 67.2. Σ x-106, Σ-43.25. %3D 1.(4) Find the estimated regression line. 2.(2) Predict the true mean expense for family size of 3. 3.(5) Complete the ANOVA table for this regression model, and do an F test for the model significance. a = 0.05. 4.(5) Conduct a t test Ho : B1 = 0, H1 : B1 +0 for the regression. Solve by reject region method. a = 0.05. We study how does family size effect monthly expense on food. We collected a sample about family size and expense as follow: family size (x) : 6, 2, 4, 3, 5, 4 expense (y, in $1000): 3.2, 1.4, 2.5, 2.0, 3.6, 2.8 Σχ- 24, Σπ = 15.5 , Σ xιν - 67.2. Σ x-106, Σ-43.25. %3D 1.(4) Find the estimated regression line. 2.(2) Predict the true mean expense for family size of 3. 3.(5) Complete the ANOVA table for this regression model, and do an F test for the model significance. a = 0.05. 4.(5) Conduct a t test Ho : B1 = 0, H1 : B1 +0 for the regression. Solve by reject region method. a = 0.05.

Answer rating: 100% (QA)

X Y XY X Y total sum 24 155 672 106 4325 mean 40000 25833 sample size n 6 here x xn ... View the full answer