9.3.29- Hep p ,and Company 2 tr 11 yean co tr act and \"regret a 90% preotion ne

Question

9.3.29- Hep p ,and Company 2 tr 11 yean co tr act and "regret a 90% preotion nervai kr new vetcle sars Rw Company 2 when 1 I5 2700 thousand The equatio of the setia-t-4810-t 3271 3123 4076-8231 1620 1834 4720 4659 4469 2949 answer boxes to complete your choice (Round to the nearest cent as needed ) A. There is a 98% chance that the predicted new vehicle sales ??. We can be 98% confident that when the newvehcie sales Co par 2 s between and-th sand. en that the new rce sa ,er Co pay wane company "1 27BO ho sand the m .no sa smCompan 2n.bebeti-mand to an All parts showing O Type here to EEEL 8 9 6

Explanation / Answer

PLEASE CONFIRM WHETHER BELOW VALUES :

sold by company 1=2760

prediction interval =98%

I took above values and computed in R

Rocde:

x <- c(4146,3989,3606,3392,3271,3123,2879,2459,1902,1620,1894)
y <- c(4930,4859,4810,4720,4659,4469,4076,3823,2949,2081,2220)
regmod=lm(y~x)
coefficients(regmod)
newdata=data.frame(x=2760)
predict(regmod,newdata,interval="predict",level=0.98)

output:

fit lwr upr
1 3759.246 2690.191 4828.301

lower limit= 2690.19

upper limit=4828.30

MARK OPTON A ENTER THE VALUES

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