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e might use the sampl
Sample mean for the k
than two groups e size ingroupolive oils, nS ard = 98, nN th = 151 to ass
98/249 = 0.39, pN th = 151/249 = 0.61. The result is to change the constant
04 o groups, /Inverse sipooled ing error iequationy2:for group k = 0.028.
98)). The train sample s slightl
tw + log(151 ﬁrst con der rearranging variance better, 7/249 New observation to be−1
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