Exercise on Normal Distribution

Therefore, the area under the normal curve outside of 2 standard deviations from the mean is 0.5 - 0.4772 = 0.0228 in each tail. Since this is a two-tailed test, we need to include both tails of the distribution in our p-value: 2 * 0.0228 = 0.0456. Alternatively, we could … ................
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