For the data below:
Year Automobile Sales Year Automobile Sales
1990 116 1977 119
1991 105 1998 34
1992 29 1999 34
1993 59 2000 48
1994 108 2001 53
1995 94 2002 65
1996 27 2003 111
(a) Determine the least squares regression line.
(b) Determine the predicted value for 2004.
(c) Determine the MAD.
(d) Determine the unadjusted forecasting MSE.
(a) = 85.15 - 1.8X
(b) 85.15 - 1.8 (15 ) = 58.15
(c) MAD = 30.09
(d) MSE = 1,121.66
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Which of the following data collection modes comes closest to being patterned after the "man-on-the-street" interview?
A) person-on-the-street interview B) mall-intercept interview C) drop-off survey D) online survey E) mail survey
When drawing up a daily "to do" list, a salesperson should most likely:
A) refer to the previous day's log for unaccomplished activities B) avoid listing more than five items for one day C) record more tasks than can be completed D) list activities in priority order E) rank items alphabetically