I get that z 2.25 for number 7. How do I input this in my calculator to get the
ID: 3049790 • Letter: I
Question
I get that z 2.25 for number 7. How do I input this in my calculator to get the answer of.0124? ) 9 14 19 28 16 08 6 Mcke sure yeu drsw a "shaded curve" for this grolblem 4 Houxhold income in a certain sown is a nomally distributed variable wih his town Make sare yeu draw a "shaded curve for this problem probability af this Pweder is onto pichability loolks ke 3DC r.se tack this flight over the oneofa yar 065 dys), de erie A, ore than 300 days duning the year. Make sane you show& "shaded curve far this 7.Aomoble tes ave a life span that is a somally ised variahle wilb», “48300 miles and ,-27oomiks. Arandam sample of 75 um is ukou Make sane yeu show a "shaded curve"lor this problom 7 nrg-Explanation / Answer
a) Z-value = (49000-48300)/[2700/sqrt(75)]= 2.245
Standard error=2700/sqrt(75)=311.76
Now, use the normalcdf function on TI-84 to get the probability .
Use syntax normalcdf(-99999,49000,48300,311.76) to get the value X and subtract it from 1 to get the answer
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