(Answered) The productivity of a factory has been recorded over 10

Statistics

The productivity of a factory has been recorded over 10 months, together with forecasts made the previous month by the production manager, the foreman and the Management Services Department. Compare the accuracy of the three sets of forecasts.

Month	1	2	3	4	5	6	7	8	9	10
Productivity	22	24	28	27	23	24	20	18	20	23
Production manager	23	26	32	28	20	26	24	16	21	23
Foreman	22	28	29	29	24	26	21	21	24	25
Management Services	21	25	26	27	24	23	20	20	19	24

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