At a water bottling facility, a technician is testing a bottle filling machine that is supposed to deliver 1000 milliliters of water. The technician dispenses 43 samples of water and determines the volume of each sample. The 43 samples have a mean volume of x = 1000.8 mL. The machine is out of calibration if the mean volume differs from 1000 mL.
The technician wants to perform a hypothesis test to determine whether the machine is out of calibration. The standard deviation of the dispensed volume is known to be = 3.8.

i). State the appropriate null and alternate hypotheses.
ii). Compute the value of the test statistic.
iii). State a conclusion. Use the = 0.05 level of significance.

C) 12.8 in

In this question, it is asking you to find how tall the scale model of the Bell Tower is (specifically in inches).

To solve this problem, we would get some information from the question that will help us get to the answer.

Important information:

With the information that we got above, we can solve the question.

What we do first is divide 160 by 25 in order to see how many feet the scale model is.

You should get 6.4 when you divide. This means that the height of the scale model is 6.4 feet.

But, we are not done yet. We need to find how high the scale model is in inches.

We would just multiply 6.4 by 2 in order to get the height in inches.

You should get 12.8 as your answer.

This means that the height of the scale model is 12.8 inches, meaning that the correct answer choice is c) 12.8 in