Compute the multiple coefficient of determination (b) Perform a t-test and determine whether or not b1 is significantly different from zero (alpha = .05) (c) perform a t-test and determine whether or not b4 is significantly different from zero (alpha = .05) (d) at alpha = .05, perform an F test and determine whether or not the regression model is significant
Multiple regression analysis was used to study the relationship between a dependent variable, y, and four independent variables. 31 observations. Partial table given below.
coefficients standard error
intercept 18.00 6.00
x1 12.00 8.00
x2 24.00 48.00
x3 -36.00 36.00
x4 16.00 2.00
ANOVA df SS MS
regression 125
error
total 760
(a) Compute the multiple coefficient of determination
(b) Perform a t-test and determine whether or not b1 is significantly different from zero (alpha = .05)
(c) perform a t-test and determine whether or not b4 is significantly different from zero (alpha = .05)
(d) at alpha = .05, perform an F test and determine whether or not the regression model is significant.
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