申論題

1.(35%)下表為各縣市在 2020年的「人口密度(PopDensity)」與「醫療院所床數(HospitalBed)」。另「直轄市(Muricpaig)」表示若該縣市為直轄市,其值為1時;否值為0。最後兩列為觀測值的總和與觀測 值的平方之總和(平方和)。

(a) Construct a box-and-whisker plot for PopDensiy. Please identify which cities or counties are possible outiers based on the resulting plot. (15%) Assume that PopDensity follows a normal distribution, and the population variances of PopDensity for municipal cities and non-municipal cities are equal. Answer the following questions.