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School: Washington
SAMLab Tip Sheet #5 Creating Graphs The purpose of this tip sheet is to provide a basic demonstration of how to create graphs with Excel. Excel can generate a wide variety of graphs, but we will use only two as primary examples. Fortunately, many of the s
School: Washington
Psych 315 Practice Problems for the Final Choose the Test (problems based, in part, on Kirk, 1999): 1. A college dean believed that car ownership among students leads to lower grades. To test this hypothesis, she obtained a random sample of student c
School: Washington
School: Washington
School: Washington
School: Washington
Psych 315 Chapter 11 Lecture Notes Probability, Part 2 Spring 2008 Binomial Distribution: when there are only 2 possible events, the distribution that shows each possible outcome and the probability of each (theoretical) each generating event has 2
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Psych 315 Practice Problems for the Final Choose the Test (problems based, in part, on Kirk, 1999): 1. A college dean believed that car ownership among students leads to lower grades. To test this hypothesis, she obtained a random sample of student c
School: Washington
School: Washington
MIDTERM KEY (1A) (1B) One-sample z-test. HO: = 7 HA: 7 z= X - 6.25 - 7 -0.75 = = = -3 1 X 0.25 16 (1C) (1D) (1E) (1F) (1G) (1H) (1 EC) 2.575 Reject HO because the obtained z (-3) is more extreme that the critical z (-2.575). "Evidence suggests
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1/8 Psych315,Spring2008 EXAM1(68points) *Youhave50mintocompletethisexam.Pleasebudgetyourtimewisely. *Useapencil. *Showallyourworktomaximizecreditreceived. *Keepatleast3decimalplacesinyourwork,butroundyourfinalanswerto2 decimals. *Allinferentialtests
School: Washington
Name _KEY_ ID _ Psych 315, Spring 2009 QUIZ 4 (38 points) * * * * You have 30 minutes to complete this quiz. Please budget your time wisely. Use a pencil. Show all your work to maximize credit received. Convert probabilities to decimals, and round to
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Name f;~l- Spring 2009 Psych 315 QUIZ 2 (44 points) * * * * You have 30 minutes to complete this quiz. Please budget your time wisely. Use a pencil. Show all your work to maximize the credit you receive. Unless otherwise noted, round to two deci
School: Washington
School: Washington
Excel HW #1 Central High scores 105 102.733 Sample mean 98 15 Sample size 98 98 Population mean 105 4.978 Estimated Population SD 101 112 1.285 Estimated Standard Error of the mean 110 3.683 t-obt 95 96 2.145 t-crit, alpha=.05 105 0.002 two-tailed p-
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Psych 315, Spring 2009 Homework 6 due Thurs 5/14 *NOTE: Assignments are posted ahead of time to allow students flexibility in when they complete them. Note, however, that these assignments may be revised slightly; any revisions will be announced in c
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Psych 315 Summer 08 Homework 4 short key REMINDER: This short key includes numerical answers only. Answers to the Excel problems are also not included. Those answers which require a short written response are not included here. Please use this key t
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Name: Student ID: Student Worksheet #2 A researcher is interested in studying height in American males to determine if heights are increasing over time. She measures the height of a randomly selected sample of men. Assume the heights are normally di
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Samples & Populations Psych 315 Dr. Allison, a developmental psychologist, is interested in the cognitive (thinking) abilities of children who attend high-quality preschools. She administers a cognitive test to 25 kids who attend her son's preschool,
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HW 8 Long Key CHAPTER 17 2. ; fail to reject HO. ; fail to reject HO. 3. (a) From Table G Since r = +0.40 is more extreme than rcrit, we reject HO. Evidence suggests that the two variables are related to each other, such that as one variable in
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Psych 315 Final Exam Study Guide This is meant to be a guide to important list, please do not consider it an exhaustive list of terms and concepts to know. The first nine chapters involve description of data (ie, descriptive statistics). You are not