Posted by Sue7 on Friday, June 21, 2013 at 9:33am.
Consider the approximately normal population of heights of male college students with mean ì = 69 inches and standard deviation of ó = 4.6 inches. A random sample of 25 heights is obtained.
(b) Find the proportion of male college students whose height is greater than 69 inches. (Give your answer correct to four decimal places.)
(e) Find P(x > 70). (Give your answer correct to four decimal places.) 0.1587 was my answer .
(f) Find P(x < 67). (Give your answer correct to four decimal places.) 0.0228
was my answer .

Math  PsyDAG, Friday, June 21, 2013 at 12:42pm
b) mean = median = mode. See definition of median.
e) Z = (scoremean)/SD for raw scores. Answer wrong.
Z = (scoremean)/SEm for means. Answer wrong.
SEm = SD/√n = 4.6/√25 = 4.6/5 = .92
f) Use same process.
Use Table indicated in later post.

Math  sue7, Friday, June 21, 2013 at 9:34pm
I understand the median is when you arrange the numbers from small to large and it is the middle number. If I write down 169, middle number is 35 but the answer ask for it in four decimal places and that answer is wrong and (e) and (f). e I came up with 0.001 and (f) I am not really sure of.
Answer This Question
Related Questions
 MATH  Assume that the population of heights of male college students is ...
 statistics  Assume that the population of heights of male college students is ...
 MATH  Assume that the population of heights of male college students is ...
 math check  Consider the approximately normal population of heights of male ...
 prob and stats  11. Assume that the population of heights of male college ...
 math help  Consider the approximately normal population of heights of male ...
 stats (please help)  Assume that the population of heights of male college ...
 statistics  Help me! Population of heights of college students is approximately...
 stat  Assume that the population of heights of female college students is ...
 Prob and Stats  To estimate the mean height population of male students on your...
More Related Questions