Collaborative Statistics: Solution Sheets: Hypothesis Testing: Two Means, Paired Data, Two Proportions 1.4 2008/06/27 15:05:29 GMT-5 2008/08/21 14:29:41.972 GMT-5 Barbara Illowsky illowskybarbara@deanza.edu Susan Dean deansusan@deanza.edu Connexions cnx@cnx.org data elementary hypothesis means pair proportion sheet solution statistics test two This module provides a solution sheet for the Hypothesis Testing: Two Means, Paired Data, Two Proportions chapter of the Collaborative Statistics textbook/collection. Class Time: Name: aHo size 12{H rSub { size 8{o} } } {}: _______ bHa size 12{H rSub { size 8{a} } } {}: _______ cIn words, clearly state what your random variable X¯1−X¯2 size 12{ {overline {X}} rSub { size 8{1} } - {overline {X}} rSub { size 8{2} } } {}, P1'−P2' size 12{P rSub { size 8{1} } ' - P rSub { size 8{2} } '} {}- or X¯d size 12{ {overline {X}} rSub { size 8{d} } } {} represents. dState the distribution to use for the test. eWhat is the test statistic? fWhat is the p size 12{p} {}-value? In 1 – 2 complete sentences, explain what the p-value means for this problem. gUse the previous information to sketch a picture of this situation. CLEARLY label and scale the horizontal axis and shade the region(s) corresponding to the p size 12{p} {}-value.

hIndicate the correct decision (“reject” or “do not reject” the null hypothesis), the reason for it, and write an appropriate conclusion, using complete sentences. iAlpha: iiDecision: iiiReason for decision: ivConclusion: iIn complete sentences, explain how you determined which distribution to use.