Answer: 37
Step-by-step explanation:
Given : Significance level : 
Critical value : 
margin of error : E= 1 mile per gallon
Population standard deviation:
miles per gallon.
We know that when the population standard deviation is known then the formula to find the sample size is given by :

[Round to the next whole number.]
Hence, the required number of automobiles should be used in the test = 37
Answer:
1. ≤ 50
2. ≥ 200
Step-by-step explanation:
Answer:
Assuming that the scale is 1, x int: (-4,0), y int: (0,-3)
Step-by-step explanation:
Hope this helps :)
Answer:
$95.00
Step-by-step explanation:
gross=$617
tax deduction 15.4%
=617×0.154
=$95.00