10.00 points (Use Excel) An automotive parts manufacturer is testing three poten

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10.00 points (Use Excel) An automotive parts manufacturer is testing three potential halogen headlight designs, one of which ultimastely will be promoted as providing best-in-class nightime vision. The distance at which a traffc sign can be read in otherwise total darkness is the variable of interest Since older drivers often have lower visual mcuity, driver age must be controlled in this experiment. The following from sampling 12 drivers (four age groups for each headlight design). n feet) were obtained Design (Factor A) 293 Below 30 30-45 46-59 60-up 243 249 214 270 254 231 205 224 238 Use Excel to construct an ANOVA table. Assume nightime viewing distances are normally distributed (Round .SS and ,MS to 2. .?,'p-value' and F crit to 3 decimal places.) Foit @5% Rows Columns Error b-1. At the 5% signfdarce level, can you conclude that the mean rightin e viewing distance is different among the headlight designs? Yes, since the p-value associated with headlight design is less than a @ Yos. ?ce te p.vaue assocated with headight des gn is greater than a. O No, since the p-value associated with headight design is less than a O No, since the p-value associated with headight design is greater than a b-2. Practically speaking what does your conclusion imply? Click to select) e, Atthe 5% signficance level, was ndang te blockng vanable Drver Age benefaal to this e. Yes.ee it is. Sagrdcant at the 5% level @ Yes, saneet is not sigríficant at th0 5% level No, sreet is signficant at the 5% level @Ne, sance is not signiart at the 5%level. References eBook &Resources; Type here to search

Explanation / Answer

a.

b.1. No, Since the p-value associated with headlight design is greater than alpha.

b.2. Practically,this implies that no headlight design is superior.

c. Yes, since it is significant at the 5% level.

Source of Variation SS df MS F P-value F crit Rows 5504.92 3 1834.97 10.359 0.009 4.757 Columns 318.5 2 159.25 0.899 0.456 5.143 Error 1062.83 6 177.14 Total 6886.25 11

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