# Mgt455 ch4 — mathematicsexpert only

4.1 The aftercited gives the estimate of pints of pattern B class used at Woodlawn Hospital in the spent 6 weeks:

a) Apprehend the require for the week of October 12 using a 3-week tender mediocre.b) Use a 3-week impressivenessed tender mediocre, delay impressivenesss of .1, .3, and .6, using .6 for the most new-fangled week. Apprehend require for the week of October 12.c) Compute the apprehend for the week of October 12 using exponential smoothing delay a apprehend for August 31 of 360 and a 5 .2. PX

4.3 Refer to Problem 4.2. Develop a apprehend for years 2 through 12 using exponential smoothing delay a 5 .4 and a fore-cast for year 1 of 6. Plot your new apprehend on a graph delay the explicit axioms and the naive apprehend. Fixed on a visual inadvertence, which apprehend is rectify?

Answers for 4.2:

(a) None self-evident.

(b) 7, 7.67, 9, 10, 11, 11, 11.33, 11, 9

(c) 6.4, 7.8, 11, 9.6, 10.9, 12.2, 10.5, 10.6, 8.4

(d) The 3-yr. tender mediocre.

4.5 The Carbondale Hospital is regarding the escheatment of a new ambulance. The judgment conciliate intermission to-some-extent on the anticipated mileage to be driven present year. The miles driven during the spent 5 years are as follows:

a) Apprehend the mileage for present year (6th year) using a 2-year tender mediocre.b) Find the MAD fixed on the 2-year tender mediocre. (Hint: You conciliate accept simply 3 years of matched axioms.)c) Use a impressivenessed 2-year tender mediocre delay impressivenesss of .4 and .6 to apprehend present year’s mileage. (The impressiveness of .6 is for the most new-fangled year.) What MAD results from using this path to apprehending? (Hint: You conciliate accept simply 3 years of matched axioms.)d) Compute the apprehend for year 6 using exponential smoothing, an moderate apprehend for year 1 of 3,000 miles, and a 5 .5. PX

4.25 The aftercited gives the estimate of accidents that betidered on Florida State Highway 101 during the spent 4 months:

Forecast the estimate of accidents that conciliate betide in May, using least-squares return to track a deviate equation.PX

4.27 George Kyparisis owns a posse that manufactures sailboats. Explicit require for George’s sailboats during each of the spent four seasons was as follows:

George has apprehended that annual require for his sailboats in year 5 conciliate resembling 5,600 sailboats. Fixed on this axioms and the multiplicative seasonal example, what conciliate the require smooth be for George’s sailboats in the jump of year 5?