Answer:
25.13in³
Step-by-step explanation:
12/4 is 3+5 to the power of -4
5 to the negative 4 power is .0005 plus 3 is 3.0005 I'm sorry if its wrong but that is my answer if I'm reading it right
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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