y23469x51020 r20976 The standard error value for the coeffic

y=23.469x+51020 r^2=0.976

The standard error value for the coefficient m1 2.123445

y=23.469x+51020 r^2=0.976 The standard error value for the coefficient m1 2.123445
There are five data points in the analaysis.
In regard to the variable cost, maintenance cost per direct labor hour, I am 95% confident the cost will vary between:

$20.28	and	$26.65
$18.16	and	$28.78
$19.22	and	$27.72
$17.10	and	$29.84
$21.35	and	$25.59

slope = 23.469.....standard error = 2.123445...

at 95% confidence and d.f = 5 -1 = 4......t-score = 2.776445......

confidence interval = [ 23.469 - ( 2.776445 * 2.123445 ) , 23.469 + ( 2.776445 * 2.123445 ) ]
= [ 17.10 , 29.84 ].......