In order to predict with 98% confidence the expected value of y for a given value of x in a simple linear regression , a random sample of 15 observations is taken. Which of the following t-able values would be used?
A) 1.350
B) 1.771
C) 2.160
D) 2.650

Question

Quizplus · Accepted Answer

For a 98% confidence level with 14 degrees of freedom (n-1 = 15-1), the t-value is approximately 2.650.

In Order to Predict with 98% Confidence the Expected Value