In order to predict with 80% confidence the expected value of y for a given value of x in a simple linear regression problem, a random sample of 15 observations is taken. Which of the following t-table values listed below would be used?
A) 1.350
B) 1.771
C) 2.160
D) 2.650
E) 2.260

Question

Quizplus · Accepted Answer

The t-table value for a 95% confidence interval with 14 degrees of freedom (15 observations - 2 parameters) is 1.350.

In Order to Predict with 80% Confidence the Expected Value