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
Turn 5% into a decimal which is 0.05, then multiply by 2.95 = 0.1475
round it off, which is 0.15
so $0.15 is the tax and if ur looking for the total price then add $2.95 to $0.15
For chemistry you would need to get an 84.
For Spanish you would need to get an 82.
Best of luck
Answer:
26 cm³
Step-by-step explanation:
A cone is 1/3 the volume of a cylinder with the same dimensions
78/3= 26
Volume= 26 cm³
