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. Does it appear plausible that the tension distribution is normal

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Mathematics

Plato

4 February, 11:51

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. Does it appear plausible that the tension distribution is normal

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Brindle · Answer 1

we can conclude that it appears plausible that the tension distribution is normal since the sample of 30 readings is taken.

Step-by-step 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.