An article in the Tappi Journal (March, 1986) presented data on green liquor Na 2 S concentration (in grams per liter) and paper machine production (in tons per day). The data (read from a graph) are...

An article in the
Tappi Journal
(March, 1986) presented data on green liquor Na₂S concentration (in grams per liter) and paper machine production (in tons per day). The data (read from a graph) are shown as follows:

on
y
= green liquor Na₂S concentration and
x
= production in a paper mill.

(a) Test for significance of regression using α = 0.05. Find the
P-value for this test.

(b) Estimate the standard errors of the slope and intercept.

(c) Test
H
₀: β₀= 0 versus
H
₁: β₀≠0 using α = 0.05. What is the
P-value for this test?