Linear Regression Model
Hi, I don't really understand how I go about this problem. I understand regression but I need a little help here.
Reaction time to a stimulus (y seconds) is believed to be related to the amount of the drug in the bloodstream (x%) by a simple linear regression model where
What proportion of individuals with 4% of the drug in the bloodstream will have a reaction time in excess of 3 seconds?
Well, so far I have substituted in (x = 4) into the equation to get
I'm not sure how to calculate the proportion. Could somebody help me?
Well, one way could be that you have the Y that's normally distributed with mean 3,1 and 0,2 in standard deviation, and you're supposed to find the probability of Y>3?
Am I understaning that correctly? If so, that's a pretty simple problem to solve.
Yes that is what I was thinking.
I am wondering now if i get the Probability of Y > 3, is this the same as the proportion >3?
Are Probability and Proportion related?
What type of distribution would this be z, t ?
Originally Posted by Ond
Hi there again.
I think this would be Z since the standard deviation is known, the t-distribution is used when it's unknown.