Chapter 9.3, Problem 10P

(a)

To determine

Verify the values of ${\displaystyle \sum x}$, ${\displaystyle \sum x^2}$, ${\displaystyle \sum y}$, ${\displaystyle \sum y^2}$, ${\displaystyle \sum xy}$ and r.

(b)

To determine

Check whether the claim $\rho >0$ is significant or not.

(c)

To determine

Verify the values of $S_e$, a, b, and $\overline{x}$.

(d)

To determine

Find the predicted pressure when breathing pure oxygen when the pressure from breathing available air is $x=4$.

(e)

To determine

Find the 90% confidence interval for y when $x=4.0$.

(f)

To determine

Check whether the claim $\beta >0$ is significant or not.

(g)

To determine

Find a 95% confidence interval for $\beta$.

Interpret the confidence interval.