SS u. J in cut except nana calculations (ie, type hypotheses and description of findings): r each numbered problem on a new page. Be sure to staple the pages together. Additional Instructions for Problems 2, 3, and 4 below: The class handouts on hypothesis testing using z-tests outline how to describe a statistical ga,.i?<*ap'nwi the findings. Be sure to reV1ew these instructions from the handouts because dries iss all hypothe31s testing 1n homework and exams throughout the semester. In addition to the instructions given with each problem include the fellowmg: (l) writeath'emullsand research hypotheses (2) re 1 Mw "mewm'mfl the, eaglem and i , in terms. Of, port the decision on whether to reject null (3) write a sentence or two that describes the findings .' viii". ,.'.n$' . fine; Vr"? l "in . a M. CAM." 7' in} Eric. '7' r. ( mr u. LP4 ;'".'M:'; SJ'QSJQ 'm'fidjg'sfiAH-z4w41. Pe'fO'm all hypathesijsfing "obagb'ili " ' 1: me - v '"852225': " problem, use thewgiO'Sngel Lays ggmcanc . .. .....' 'ugeuz 'J'Lffifii xu , [km A w. l' g Part A Hypoth esis-testing using zgtests 1. Chapter 5, Problem - jima/Ci fi: ;, mf , . : 3 l ' aus; it ji} Mbit-Mi?" , x , dlstrlbutlon 1ncludrng the mean, . It, Him wt tin: -t "ma 1 m. A psychologist develops a new inventory to measure depression. Using a very large standardization group of "normal" individuals, the mean score on this test is u = 55 with o = 12, and the scores are normally distributed. To determine whether the test is sensitive in detecting those individuals that are severely depressed, a random sample of patients who are described as depressed by a therapist is selected and given the test. The higher the score on the inventory, the more depressed the patient is. The data are as follows: 59, 60, 60, 67, 65, 90, 89, 73, 74, 81, 71, 71, 83, 83, 88, 83, 84, 86, 85, 78, 79. Do patients score significantly different than the "normal" individuals on the test? Test with the .01 level of significance. Draw the comparison distribution and locate the sample mean and its associated z-score on the ctomparrsen distribution. Chapter 7, Pmbm a re, & t 4 it", Phiii'ifi'iafi ; " " ' ":@ 1 4 .l: ' 9 . . ' mn WI 500\f\f