Answer:
Step-by-step explanation:

Since sample size is small and population std dev is not known, t test should be used.
p value = 0.135849
Since p>0.05 we accept that samples have a mean equal to 2533mm
There is no sufficient evidence to support the claim that the boards are either too long or too short
3 x $38 = $114
0.08 x $114 = $9.12
$114 + $9.12 = $123.12
Happy to Help!
Answer:
-14.4, -14 1/5, -14.04
Step-by-step explanation:
1/5=0.2
-14..04 is closest to 0 on a number line
the more i think about it the more i doubt myself but i hope its right. pretty sure it is.
Please post full question
4(5/8)= 2.5 squared feet per hour