Statistics Solutions

[Solution] Given the following data set: X Y XY X 2 2 6.1 12.2 4 3 7.3 21.9 9 5 10.4 52 25 5 9.4 47 25 6 10.7 64.2 36 7 12.1 84.7 49 28.0 56.0 282.0 148.0

Question: Given the following data set:

X Y XY X 2
2 6.1 12.2 4
3 7.3 21.9 9
5 10.4 52 25
5 9.4 47 25
6 10.7 64.2 36
7 12.1 84.7 49
28.0 56.0 282.0 148.0

™

ANOVA TABLE
Source Sum of Squares df Mean Square
Regression 24.641 1 24.641
Error .06123 4 .0153
Total 25 5

_

  1. Calculate X:
    _
  2. Calculate Y :
    _
  3. Calculate the Slope: B = Σ XY− n ( X )(Y ) / ∑ X2 – n(X)2
    _ _
  4. Calculate the Y-intercept: A = Y −B ( X )
  5. Write the regression equation; Y C = A + B(X):
  6. Predict Y C for X =15:
  7. Calculate the coefficient of determination:
  8. Should you assume a significant relationship between the dependent and independent variables based on a 5% significance level?

Price: $2.99
Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


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