Hi Mimi!
1. A company sells furniture for home assembly. Their largest bookcase has shelves that should be 115 cm, with a tolerance of 0.6 cm (115 cm ± 0.6 cm). A set of six shelves had lengths of 115.2 cm, 114.9 cm, 115.0 cm, 114.3 cm, 114.7 cm, and 115.7 cm. Which, if any, of the shelves are not within the specified tolerance?
Answer: C) Only the 114.3 cm shelf
Toloerance Levels are between 114.4 and 115.6 and 114.3 is the only one not in the tolerance levels.
Answer: B) Both the 114.3 and 115.7 cm shelves.
It is B because you can't have 114.3 because the lowest is 115 and the highest is 115.7 the highest it can be is 115.6.