homework_19 and_20 (webwork2wardSTAT2231F2017/Homework 19 and_20? user leonel. k
ID: 3333485 • Letter: H
Question
homework_19 and_20 (webwork2wardSTAT2231F2017/Homework 19 and_20? user leonel. kafando%40GeorgiaSouthernedu&effectiveUser-leonel; .kafando%40Geo giaSouthern. 12 Homework 19 and 20: Problem 2 Previous (/webwork2/wardSTAT2231F2017/ user leonel rkafand0%40GeorgiaSo them edu&effectiveUser; leonel r kafar do%40GeorgiaSouthern edua user-leonel r kafand0%40GeorgiaSouthem.edu&effectiveUseraleonel; user-leonel r kafando%40GeorgiaSouthern edu&effectiveUserleonel;, kafando%40GeorgiaSo them edu8 (1 point) iQ scores have a mean of 100 and a standard deviation of 15. Joe has an IQ of 130. (a) What is the difference between Joe's IQ and the mean? Problem List (webwork2/wardSTAT2231F20 r kafand0%40GeorgiaSouthern.edu&i; Next (webwork2/wardSTAT2231F2017/H Answer (b) Convert Joe's IQ score to a z-score. Answer: Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 0 times. You have unlimited attempts remaining. Email instructor Page generated at 10/16/2017 at 05:53pm EDT WeBW oriko 1996-2016 l theme: math ww version: 212] pg-version: 212] The WeBWorK Project (htpl/webwork-maaorg)Explanation / Answer
Mean = 100
Standard deviation = 15
A) Difference between Joe's IQ and mean = 130 - 100 = 30
B) Z score corresponding to Joe's IQ = (difference of IQ score and mean)/ standard deviation
= 30/15
= 2
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.