Question T-test statistics on the slopes? Unable to understand this one all day and it seems easy
e) is estimated slope value of 1.53 statistically significantly greater than zero? Conduct appropriate assumptions, calculate a test statistic appropriate, calculate a p-value or critical value and interpret your results in the context of the problem. Use α = 0.05.
Here are the known values
A sample of 19 female bear has been measured for the chest (Y) and neck circumference (x), both in inches. The LS regression equation relating the two variables y = 5.32 x 1.53
SSE = 231.72 square inches, r = 0.887, = 365.18 SSxx Sq.Inches, and x ° = 18.76 inches
I hope you mean SSxx the sum of squares regression
So now, Your F statistics. SSxx / MSE
MSE = = 231.72/17 = 13.63 231.72/n-2 ....
Your statistic is F = 365.18/13.63 = 26.79 ....
F = the critical value (1.17) 0.05 = 4.45
Since 26.79 is greater than 4.45 you reject the Ho that beta = 0.
Posted on April 25, 2010.