Statistics 1213 / Final Exam / 1998 Dec

             A N S W E R S

  PART I
     For N=4  U=16;   For N=5  U=25;  For N=6  U=36
     Yes for all three cases

  PART II
     (A)  300 is too big and 30 too small, thus 100
     (B)  (a)
     (C)  -0.7
     (D)  3²x50 = 450
     (E)  (b) and (d)

  PART III
     (A) Sign Test
     (B) Sign Test
     (C) U-Test
     (D) U-Test
     (E) Chi-Square

  PART IV
     (A) 0.7583 cm
     (B) {{This is the rightmost point. at about X=21, Y=19.5}}
     (C) About 4 cm
     (D) 0.27 ± 2x0.024 cm
     (E) The dotted lines enclose a confidence band for the
         POPULATION  fitted line.

  PART V
     Almost surely, those who recorded the data recorded unknown
     ages as zero, thus the 400+ pound animal might have been
     any age.