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A first-order linear regression model is used to study the price (Y) to the size of a flat (X), i.e. the model Y= Bo+ BIX+ &. However, the flats selected in the study can be classified into three types, namely, full sea-view, partial sea-view, and no sea-view. Therefore, the following indicator variables, Z1 and Z2, are used to indicate the different types of view: Types of Sea-view Z1 Z2 Full Partial No a. Set up the hypotheses to compare whether the price model of "full sea-view" flats is the same as that of "partial sea-view" flats; b. Give the corresponding full model and reduced model; c. Describe briefly how to find the test statistic and the corresponding degrees of freedom