Test Using an Indicator Variable Model

INTERCEPT TEST USING AN INDICATOR VARIABLE MODEL 

We can employ the six-step procedure to measure whether the intercepts are equivalent for multiple products. 

in order to have the same intercept, 62 nnist equal zero. 

Intercepts are the same for the microbial data for both products if Z 2 = 0-Intercepts are not the same if 62 0. 

Step 3 Write out the test statistic. In Case 1, for unequal slopes (interaction is significant), the formula is 

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