tag:blogger.com,1999:blog-8976061736133313801.post6116882790557497287..comments2023-08-27T01:03:19.717-07:00Comments on Statistics on a budget: Practice problems for population percentilesProf. Hubbardhttp://www.blogger.com/profile/16575880031145705761noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-8976061736133313801.post-15459660533959730322009-03-22T18:24:00.000-07:002009-03-22T18:24:00.000-07:001. What percentage of American women list their he...1. What percentage of American women list their height as 5'1"?<BR/><BR/>z(60.5) = -1.24<BR/>z(61.5) = -0.84<BR/><BR/>-0.84 -> .2005<BR/>-1.24 -> .1075<BR/><BR/><B><BR/>.2005 - .1075 = .0930 = 9.3%<BR/></B><BR/><BR/>2. What percentage of American women list their height as 5'2"?<BR/><BR/>z(61.5) = -0.84<BR/>z(62.5) = -0.44<BR/><BR/>-0.44 -> .3300<BR/>-0.84 -> .2005<BR/><B><BR/>.3300 - .2005 = .1295 = 12.95%<BR/></B><BR/><BR/>3. What percentage of American women list their height as 5'3"?<BR/><BR/>z(62.5) = -0.44<BR/>z(63.5) = -0.04<BR/><BR/>-0.44 -> .3300<BR/>-0.04 -> .4840<BR/><B><BR/>.4840 - .3300 = .1540 = 15.40%<BR/></B><BR/><BR/>4. What percentage of American women list their height as 5'4"?<BR/><BR/>z(63.5) = -0.04<BR/>z(64.5) = 0.36<BR/><BR/>-0.04 -> .4840<BR/>0.36 -> .6406<BR/><B><BR/>.6406 - .4840 = .1566 = 15.66%<BR/></B><BR/><BR/>5. What percentage of American women list their height as 5'5"?<BR/><BR/>z(64.5) = 0.36<BR/>z(65.5) = 0.76<BR/><BR/>0.36 -> .6406<BR/>0.76 -> .7764<BR/><B><BR/>.7764 - .6406 = .1358 = 13.58%<BR/></B><BR/><BR/><BR/>6. What percentage of American women list their height as 5'6"?<BR/><BR/>z(65.5) = 0.76<BR/>z(66.5) = 1.16<BR/><BR/>0.76 -> .7764<BR/>1.16 -> .8770<BR/><B><BR/>.8770 - .7764 = .1006 = 10.06%<BR/></B><BR/><BR/><BR/>7. What percentage of American women list their height as 5'7"?<BR/><BR/>z(66.5) = 1.16<BR/>z(67.5) = 1.56<BR/><BR/>1.16 -> .8770<BR/>1.56 -> .9406<BR/><B><BR/>.9406 - .8770 = .0636 = 6.36%<BR/></B><BR/><BR/><BR/>8. What percentage of American women list their height as 5'8"?<BR/><BR/>z(67.5) = 1.56<BR/>z(68.5) = 1.96<BR/><BR/>1.56 -> .9406<BR/>1.96 -> .9750<BR/><B><BR/>.9750 - .9406 = .0344 = 3.44%<BR/></B><BR/><BR/>9. What percentage of American women list their height as 5'9"?<BR/><BR/>z(68.5) = 1.96<BR/>z(69.5) = 2.36<BR/><BR/>1.96 -> .9750<BR/>2.36 -> .9909<BR/><B><BR/>.9909 - .9750 = .0159 = 1.59%<BR/></B>Prof. Hubbardhttps://www.blogger.com/profile/16575880031145705761noreply@blogger.com