Answer: 37
Step-by-step explanation:
As per given description in the question, we have
Population standard deviation :
Critical value for 98% confidence interval =
Margin of error : E= 1 mile per gallon
Formula we use to find the sample size :
i.e.
Therefore , the number of automobiles should be used in the test =37
C The graph is continuous because there can be fractional values for time
8y - 5 < 3
8y < 5+3
8y<8
y<1
3p + 2 > -10
3p>-10-2
3p> -12
p>-4
-2 > m/6 -7
- m/6>+2-7
Multiply each member by 6
-m >-42+12
-m>-30
m<30