ECN 102 Study Guide - Midterm Guide: Interquartile Range, Skewness, Standard Deviation
Document Summary
Econ 102 (analysis of economic data): cameron spring 2015. 1. (a) no. growth does not appear to be normally distributed. So doubled in year 2014 + 17 = 2031: (e) this question meant to ask for the change in the overall price level. Alternative correct answer if you interpreted it as change in tuition and fees is 8471-1259=7212. (f ) from 1986 to 2014 (cid:1) lnnominal= (9:0444 (cid:0) 7:1381) = 1:9063 in 28 years. So increase at 1:9063=28 = 0:068 per year or 6:8% per year. 2. (a) a 95 percent con(cid:12)dence interval is 4:155236 (cid:6) t:025;27 (cid:2) 2:974328=p28. = 4:155236 (cid:6) 2:0518305 (cid:2) 0:562095 = 4:155236 (cid:6) :1:1533237 = (3. 0019, 5. 3086). (b) h0 : (cid:22) = 5 against h0 : (cid:22) 6= 5. t = (4:155236 (cid:0) 5)=(2:974328=p28) = (cid:0)1:5029. Since jtj = 1:5029 < t:05;27 = 1:7033 do not reject h0.
