Table 8.1.2c.  Combining the evidence: copywriters and art directors

	(1)		(2)		(3)		(4)		(5)		(6)		(7)
	S[j]		m[j]		mu[j]		(2)x(3)		N[j]		sigma_sq[j]	Var S[j]

 1	 49		 1		38.68		 38.68		31		106.93		 106.93
 2	 34		 1		38.33		 38.33		30		106.82		 106.82
 3	 47		 1		39.03		 39.03		31		 98.16		  98.16
 4	 36		 1		38.71		 38.71		31		 95.75		  95.75
 5	 31		 1		39.14		 39.14		29		 97.71		  97.71
 6	 48		 1		39.43		 39.43		28		103.32		 103.32
 7	 53		 1		39.11		 39.11		27		104.32		 104.32
 8	175		 3		38.21		114.63		28		103.60		 287.77
 9	 48		 1		35.44		 35.44		27		 58.25		  58.25
10	 26		 1		35.22		 35.22		27		 52.02		  52.02
11	 37		 1		35.78		 35.78		23		 54.08		  54.08
12	 36		 1		34.56		 34.56		25		 50.97		  50.97
13	 33		 1		35.27		 35.27		26		 60.74		  60.74

Total	653		15				563.4						1276.84