The predicted value of hardness at 37 hours is 243.87 and an 85% confidence interval for the mean hardness is (242.12, 245.61). At 41 hours, the predicted hardness is 252 and an 85% confidence interval for mean hardness is (249.83, 254.18). The confidence interval for X is equals to 41 which is wider because the value 41 is farther away from the sample mean X than is 37. As an outcome, the standard error for the prediction is larger.
I think the answer is 2476/825
It would be 10x10 =100 or in other word 10 times itself. Also known as 10 with the 2 hanging over the 10.
It's less that 3/6 because the bigger the fraction is the smaller it gets. So what I'm trying to imply is ,that the higher the number is in a fraction then the outcome would be smaller.