Regression methods were used to analyze the data from a study investigating the relationship between roadway surface temperature ( x ) and pavement deflection ( y ). Summary quantities were n = 20, Σ...

Regression methods were used to analyze the data from a study investigating the relationship between roadway surface temperature (x) and pavement deflection (
y). Summary quantities were
n
= 20, Σy

_i
= 12.75,
= 8.86, Σx

_i
= 1478,
 = 143,215.8, and gx

_i

y

_i
= 1083.67.on
x
= roadway surface temperature and
y
= pavement deflection.

(a) Test for significance of regression using α = 0.05. Find the
P-value for this test. What conclusions can you draw?

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