Test	Diameter (in)		A pipe manufacturer makes tubes with diameter (in) of around 7.5 inches. These tubes will be used to transport various liquid materials for manufacturing processes.
1	7.65		You have the unfortunate luck of having to deal with a very strict Quality Control (QC) specialist who has taken the following 15 samples from your production run and has decided to test whether or not they are on average 7.5 inches in thickness diameter.
2	7.55		Because this QC specialist very strict and nobody really likes him, he decides that his tolerances are much more stricter than other QC specialists and decides to make his signifiance threshold cutoff at 1%.
3	7.60		Your tubes must be on average 7.5 inches in diameter. Will your samples pass his tolerance test?
4	7.40
5	7.50
6	7.65
7	7.40
8	7.70
9	7.50
10	7.55
11	7.60
12	7.40
13	7.50
14	7.65
15	7.40

Could you please explain this in excel sheet?