Each of three samples has been plotted on a normal probability plot. For each, say whether the sample appears to have come from an approximately normal population.

Solution :

Step 1 of 3:

The 3 samples has been plotted on a normal probability plot.

Our goal is:

We need to find the for each plot, say whether the sample appears to have come from an approximately normal population.

Now we have to find the for each plot, say whether the sample appears to have come from an approximately normal population.

a).

No.The sample does not appear to have come from an approximately normal population.

From the above chart the data do not come from a population that is close to normal.