Homework_13_Answer_Key

Homework_13_Answer_Key - H omeuork I3 A nswer key I I...

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- Homeuork I3 Answer key I Hei9ht 04 Woman lid I : b\ Based on +he ~caHerp\ot, i) appears +hat +here is a weak1 moderas e I posi+ive torre\ation between the two variables.
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- I IId) Whi Ie +here -is a ~orre\ati on -be+w em -+heheiqh+r4Sfhe_rnan_ and woman in couples, it is not clear whether +he woman's - I height causes her fo da+e men oG a certain height*- . I I Also, +he selection pcocess does appear-to be - - 1 random because a\\ women were se\ected -from+)? e-- , same dormitory ha\lway. This makes-me-gues+ion the--- - I \/a\idi+y oS study. - - - -- - - -- - - - --- - - .-C i5 all heights 05 are changed by the Same amount. -- I 15) Since a line mu\d be drawn +ha+ goes throu h a\\ oS .- 1 ~oink, and \ine upward doping, &I. - --
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log\ r= 0.5692 lsarne as before. slightly 055 due to rounding\ I i does not ~hnnae i5 the units are changed for one 1 ~ariab\e. I ~b) Since 0 is included in the.CI. we cannot conclude +ha+ age 1 and speed linearly related.
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- - -- -i 3) I Q There is not suf5ieient evidence to conclude that 1 - more calls pep additional person ace being made - than the phone company assumes.
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Homework_13_Answer_Key - H omeuork I3 A nswer key I I...

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