Answer:
we can conclude that it appears plausible that the tension distribution is normal since the sample of 30 readings is taken.
Explanation:
We are given that the accompanying normal probability plot was constructed from a sample of 30 readings on tension for mesh screens behind the surface of video display tubes used in computer monitors.
According to Central Limit Theorem we can have a normal distribution if we take a large sample.
So the question is how much sample size do we need?
The rule of thumb is to take a sample size of at least 30 to ensure a normal distribution.
Therefore, we can conclude that it appears plausible that the tension distribution is normal since the sample of 30 readings is taken.