Question

In: Statistics and Probability

Using the following data... (a) Fill in the table: X Y X2 Y2 XY 5 2...

Using the following data...
(a) Fill in the table:



X	Y	X²	Y²	XY

5	2
7	3
10	4
8	5
7	4

ΣX =	ΣY =	ΣX² =	ΣY² =	ΣXY =

(b) Compute the degrees of freedom and determine the critical value of r for α = 0.05 (two-tails).

df =
r-critical =

(c) Compute SS_X, SS_Y, SP, and the Pearson correlation (r). (Use 3 decimals)

SS_X =
SS_Y =
SP =
r =

(d) What decision should be made?

Retain the null.Reject the null.

(e) Calculate r², the percentage of variance explained: (Use 3 decimals)

r² =

Expert Solution

Solution:

a) Fill the table:

b) critical value:

c) Pearson correlation coefficient is:

d) decision:

e) Coefficient of determination:

orchestra answered 2 years ago

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