Normal Mean 0.1116 StDev 0.1715 AD 0380 0.3 0.2 0.1 0.0 0. 0.2 0.3 0.4 0.5 0.6 A

Question

Normal Mean 0.1116 StDev 0.1715 AD 0380 0.3 0.2 0.1 0.0 0. 0.2 0.3 0.4 0.5 0.6 Average Global Temperature (C) 1) Describe the pattern you see in your plot. Does this pattern seem to indicate nonnormality? If so, in what way? (For example, is the upper tail longer than that of a normal distribution? To diagnose this, see if the points seem to be bending downwards from the line on the righthand side of the plot.) 2) On the upper righthand side of the normal probability plot, you will see a box containing five numbers. The fourth number ('AD") is the Anderson-Darling Statistic. The larger this number is, the stronger the evidence of non-normality. The fifth number ("p-value") gives the probability that we would get such a large value for AD if the distribution were actually normal. The closer this p-value is to zero, the stronger the evidence of non-normality. Does this p-value seem to indicate non-normality in your data? Remember to use the definition of a p-value that we learned in class!

Explanation / Answer

Solution(1): This the normal probability plot for the data. The data point is very close to the line of normality which means this pattern indicates the normality of the data.

Solution(2): The value of p-value is 0.382, this p-value also seems to indicate the normality of the data.

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