@ leke lert-Uwzyre M.ddleton-Mole hreta. × - BUSN 5760 OC SU 2017 Applied Busine

Question

@ leke lert-Uwzyre M.ddleton-Mole hreta. × - BUSN 5760 OC SU 2017 Applied Business Statistics Dwayne Middleton 7/26/17 9:58 PM Test: Week 9 Final Exam Submit Tesl This Question: 1 pt I3 of 13 (3 complete) This Test: 13 pts possible The business problem facin the diedo oftsn opal or a lekvision stanwas he iss standby hours. A stuy of standby hours was conducled for 26 weeks. The variables in the study are S Slandby Hours ie slalon are paid bul dre nota:lually imolved in ariy ddvity) and whal rado's we'claled to g table. Corrlele parts a through g belov Standby hours(Y Total number of standby hours in a week Tolal slf poyal of peoplo-days Remote hours 2) Number of hours worked by employees off sie Click the icn to view the data tahle StandbyTotal StafRenote Hours (Y)PresentXHours (X a. State the mulhple regression equation 600 656 631 269 211 196 135 195 118 116 DX,Dxas (Round to cne decimal place as needed) XRound to cne decimal place as needed.) 372 337 O A. For a giveri nunber of remote hours, each increase of one unit of total staff present is n number of total staff present each increase of one unit in rermote hours is estimated to result in meen duc'ease in slandby hours of lhe bsolule value of b) units. 325 311 O B. Esch increase in standby hours is estimeted to result in a mean increase in total statt present O C. For a giver rurnber of renole hours, each increaseofone uni of ctal staff presernl ad orne O D. he slopes, and b2, cannot be interpreted individually c. Explain why lhe regressun coeficeril, bo has no practical meaning in the uri ed of this problem O A. The coefificient b has no practical meaning in this context because it is not close in value to a O B. The coefficient byhasno prtical meaning in this context because Y depends on not ony b O C. The coefficient by has no practical meaning in this context because it corresponds to the nu O D. Thecocticient t has no pracical mcaning in this context bause it estimales the standy he d. Predict the maan standby hours for a week in which the total staff present have 310 people days a There would blandby hours predicted for the week. 336 in remole hours ofb arnd b unis, respectivey. 312 115 1611 274 4012 151 271 475 183 1/5 319 130 188 1C17 251 336 235 270 317 315 Click to sclect your answer(s) Print Donc

Explanation / Answer

a) Regression Analysis: Y versus X1, X2

The regression equation is
Y = - 328 + 1.75 X1 - 0.135 X2

b) Correct Answer: option (B)
c) b) Correct Answer: option (D)
d) There would be 160.5 standby hours predicted for the week
Ycap=- 328 + 1.75 (310) - 0.135 (400)=160.5
e)
The 95% confidence interval is (142.34, 180.52)

f) The 95% prediction interval is (85.29, 237.57)

g)Correct Answer: option (B)

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