Use the Following Information for Questions:
a Regression Line $\hat{y}$

Short Answer

Use the following information for questions:
A regression line that relates y = hand span (cm) and x = height (inches) is $\hat{y}$ = -1 + 0.3 x. The sample size was n = 5 adults. The standard deviation of the regression is s = 1 cm. For height = 60 inches, the standard error of the fit is s.e.(fit) = 1 cm.
-What is a 90% confidence interval for the mean hand span of people who are 60 inches tall?