PSY 230 W5 P-2 WORD.docx - FallA2018 PSY230: Assignment A-5...

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FallA2018PSY230: Assignment A-5Part II (50 points)Assignment Direction:1.Complete Part I of this assignment first, if you have not done so, because it provides guided practice onquestions similar to the questions in Part II here.2.Check out the “Assignment Guides” in the Navigation menu in Blackboard to see how to properly showyour math work. There are also examples of the APA-style tables and graphs (figures) for your reference.3.Your submitted assignment must be in Word format, with a clear answer typed out for each question,even if you show math work in a separate Excel file.Q1) Independent-SamplestTest (25 points total)A parent educator would like to evaluate the effectiveness of a series of pre-natal infant careclasses on maternal anxiety. The parent educator conducted a small study to examine thepotential effect of the 6-week infant care classes on anxiety as measured on a 10-item scale at 6months post-partum. A composite score ranging from 0 to 10 was computed from the scale foreach subject with 10 indicating the highest level of anxiety. The parent educator recruited 10expectant first-time mothers to participate in the infant care classes and 12 expectant first-timemothers with similar demographics who do not participate in the infant care classes. At sixmonths after giving birth, all participants were surveyed on their level of anxiety. The data arelisted in the table below. The parent educator is interested in a more stringent test and thusdoes not posit a particular direction for the results. The alpha level is set at .05 for thehypothesis test.Infant careclassesNoinfantcareclassesSubjectID#AnxietyscoreSubjectID#Anxietyscore1211624123311354514
FallA201845315862166741748218694192103203214227

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Term
Fall
Professor
GLENBERG
Tags
Statistics, Standard Deviation, Null hypothesis, researcher, Statistical significance, Statistical power

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