Nykol Green 2/12/18 10:25 PM Math 2000 Statistics-Section 14-Spring 2018 Quiz: Q
ID: 3061066 • Letter: N
Question
Nykol Green 2/12/18 10:25 PM Math 2000 Statistics-Section 14-Spring 2018 Quiz: Quiz2 Triola 4.2-4.5, 5.2 This Question: 1 pl ie Remaining: 01:32 45 Suemt Quz 12of20(2complete) This Quiz: 20 pts possible Use the following nesults from a et Sor manjuana use, which is provided by a certain drug testing company Among t44 sucts with postive est resuls, here are 20 ahe postive rets among 160 negative results, hene ane 5 aise negative resuits Hone of the beot subjeicts s randomly selected,tind the probability of a tabe postive or talse negative Hint Construct a tuble ) What does te resul sugget about the tess accuracy? The probability of a take postve o alse negative is Roun to ee decial places as needed) A we, an enor tate of 00824or a 2%).theb st appears to be hgey accurate OC. OD. Wie, an enor rate of0012(or82%) tho test does rot appear to be highly accurate wm a-enr rate of 0918tar 91 8%), he wst does not appear to be hgh.y accurate a Overal CicK to seect your anws F10 F1 F12 Prser 5 6 7 8 W EExplanation / Answer
Number of false negative or false positive = 20+5 = 25
Number of subjects = 144+160 = 304
P(false negative or false positive) = 25/304
= 0.082
C. With an error rate of 0.082(or 8.2%) the test does not appear to be highly accurate.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.