Statisitics for Business and Economics II

STAT35I Section D Quiz8 NamcM / 1-G~ Be1111erf The National Sleep Foundation used a survey to determine whether hours of sleep per night are independent of age (Newsweek, January I9, 2004). A sample of individuals was asked to indicate the number of hours of sleep per night with categorical options: fewer than 6 hours, 6 to 6.9 hours, 7 to 7.9 hours, and 8 hours

STAT | 351 | Statisitics for Business and Economics II | STAT35I Section D Quiz8 NamcM 

ST AT3 51 Sec ti on D Qui z7 Name /Vl ~h Be11 11eft I. Actual sales of a company (in millions of dollars) for January through April are shown below. Month Sales Exp. Smoothing Forecast Error (Error) 2 Forecast (a= .~) I Janua 18 Febru ary 25 ~er 7 L-J q 3 March 30 I K l:OB(as - 1&) :: Jo,1 q,q q1,~1 l,\ ·1 40 .:>0. 1 +D,~($2 - :}0, I) ~ ~3.( \~.Cf d ~5. o:-1 Apn ) May a) Use a= 0.3 t

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