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  • 13 Pages Significance_Testing
    Significance_Testing

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Significance Testing Wed, March 24th Statistical Hypothesis Testing Procedure that allows us to make decisions about pop parameters based on sample stats Example mean aver salary of all workers = $28,985 (pop mean = y) Sample of 100 Af

  • 2 Pages lab17
    Lab17

    School: Illinois State

    Name _ Lab 18 Worksheet 1) Your company markets a computerized medical diagnostic program. The program scans the results of routine medical tests (pulse rate, blood tests, etc.) and either clears the patient or refers the case to a doctor. The program is

  • 1 Page dmlab23
    Dmlab23

    School: Illinois State

    Name _ Lab 23 Worksheet (1) (2) (3) (4) (5)

  • 1 Page dmlab25
    Dmlab25

    School: Illinois State

    Name _ Lab 25 Worksheet 1) 2) 3) 4) 5) 6) 7) 8) a) b) c) 9) a) b) c) 10) (a) (b) (c)

  • 2 Pages lab22
    Lab22

    School: Illinois State

    Name _ Lab 22 Worksheet 1) If you just make one 90% confidence interval will it necessarily capture the parameter value (actual population mean)? Try it. How good was your guess? 2) If you make ten different 90% confidence intervals, how many of them do y

  • 3 Pages dmlab19
    Dmlab19

    School: Illinois State

    Name _ Lab 19 Worksheet 1) Paste the plots with your hand-drawn line below. height by average of your parent's height (avgphgt) height by average household income of your parents(income) height by average weekly calcium intake over the first 5 years of li

  • 2 Pages dmlab15
    Dmlab15

    School: Illinois State

    Name _ Lab 15 Worksheet 1) Your company markets a computerized medical diagnostic program. The program scans the results of routine medical tests (pulse rate, blood tests, etc.) and either clears the patient or refers the case to a doctor. The program is

  • 1 Page dmlab13
    Dmlab13

    School: Illinois State

    Name _ Lab 13 Worksheet 1) 2) 3) 4) 5) 6) (7) (8) Try another example with a different distribution: A bottling company uses a filling machine to fill plastic bottles with cola. The bottles are supposed to contain 300 milliliters (ml). In fact the content

  • 1 Page lab6
    Lab6

    School: Illinois State

    Name _ Lab 6 Worksheet (1) (a) (b) (c) (2) (a) (b) (3) (a) (b) (c) (4) (a) (b) (c)

  • 13 Pages Significance_Testing
    Significance_Testing

    School: Illinois State

    Significance Testing Wed, March 24th Statistical Hypothesis Testing Procedure that allows us to make decisions about pop parameters based on sample stats Example mean aver salary of all workers = $28,985 (pop mean = y) Sample of 100 African Amer wor

  • 8 Pages NormalDist_ch10slides
    NormalDist_ch10slides

    School: Illinois State

    Ch10:NormalDistribution& StandardScores Mon.Feb23rd,2004 Commontheoreticaldistributionw/bellshaped, symmetricalcurve Mean,median,modealloccuratpeak NormalDistribution(ND) PropertiesoftheND: Areaunderit=1.0(100cores) 50coresfallabovemidpt,50'elow Betw

  • 1 Page rulers
    Rulers

    School: Illinois State

    Ruler # 1 _ 0 Ruler # 2 0 _ 1 _ _ 1 2 _ 3 _ _ 2 4 _ 5 _ _ 3 6 _ 7 _ _ 4 8 _ 9 _ _ 5 10 _ 11 _ _ 6 12 _

  • 10 Pages Related Samples t-test
    Related Samples T-test

    School: Illinois State

    Related Samples ttest Wed, Apr 7th Related Samples t Use when: 1 group of subjects is tested more than once (e.g., pretest / posttest).or 2 groups of related (or matched) subjects are measured once (e.g., twins) Uses same basic t formula, but focu

  • 1 Page dmlab16
    Dmlab16

    School: Illinois State

    Name_ Lab 16: Review Lab Worksheet (1) (2) (3) (4) (5) (6) (7) (a) (b) (c) (d) (a) (b) (8)

  • 3 Pages lab16
    Lab16

    School: Illinois State

    Name _ Lab 17 Worksheet Try some on your own. Each of the following situations calls for a significance test for a population mean . State the null hypothesis H0 and the alternative hypothesis Ha in each case. (1) The diameter of a spindel in a small moto

  • 1 Page dmlab22
    Dmlab22

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 22 Worksheet (1) A major university would like to improve its tarnished image following a large oncampus scandal. Its marketing department develops a short television commercial and tests it on a sample of n = 7 subjects. People's attitude

  • 1 Page rulers
    Rulers

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Ruler # 1 _ 0 Ruler # 2 0 _ 1 _ _ 1 2 _ 3 _ _ 2 4 _ 5 _ _ 3 6 _ 7 _ _ 4 8 _ 9 _ _ 5 10 _ 11 _ _ 6 12 _

  • 13 Pages IndependentSamplesttest
    IndependentSamplesttest

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Independent Samples ttest Mon, Apr 12th t Test for Independent Means Comparing two samples e.g., experimental and control group Scores are independent of each other Focus on differences betw 2 samples, so comparison distribution is: Di

  • 2 Pages lab20
    Lab20

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 20 Worksheet (1) A major university would like to improve its tarnished image following a large oncampus scandal. Its marketing department develops a short television commercial and tests it on a sample of n = 7 subjects. People's attitude

  • 2 Pages lab17
    Lab17

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 18 Worksheet 1) Your company markets a computerized medical diagnostic program. The program scans the results of routine medical tests (pulse rate, blood tests, etc.) and either clears the patient or refers the case to a doctor. The progra

  • 2 Pages lab21
    Lab21

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 22 Worksheet (1) A psychologist is interested in studying the effects of fatigue on mental alertness. She decides to study this question using an independent samples design. She randomly assigns individuals to two groups. Group 1 stays awa

  • 3 Pages lab16
    Lab16

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 17 Worksheet Try some on your own. Each of the following situations calls for a significance test for a population mean . State the null hypothesis H0 and the alternative hypothesis Ha in each case. (1) The diameter of a spindel in a small

  • 8 Pages NormalDist_ch10slides
    NormalDist_ch10slides

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Ch10:NormalDistribution& StandardScores Mon.Feb23rd,2004 Commontheoreticaldistributionw/bellshaped, symmetricalcurve Mean,median,modealloccuratpeak NormalDistribution(ND) PropertiesoftheND: Areaunderit=1.0(100%scores) 50%scoresfalla

  • 1 Page dmlab24
    Dmlab24

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 24 Worksheet (1) (2) (3) (4) (5)

  • 2 Pages lab9
    Lab9

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 9 Worksheet (1) For the data set (for the median computation, consider this data for a discrete variable): (21, 22, 23, 24, 24, 24, 25, 25, 25, 25, 26, 27, 28) compute (by hand) the mean, mode, and median. Questions 2-8 use the students.sa

  • 4 Pages lab14
    Lab14

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 14 Worksheet 1) If you toss the coin just once, what are the possible values for the proportion of heads? 2) If you toss the coin 400 times with a probability of 0.5, which is more likely to happen: getting exactly 200 heads, or getting w

  • 3 Pages dmlab19
    Dmlab19

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 19 Worksheet 1) Paste the plots with your hand-drawn line below. height by average of your parent's height (avgphgt) height by average household income of your parents(income) height by average weekly calcium intake over the first 5 years

  • 2 Pages lab1
    Lab1

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Name _ Lab 1 Worksheet Email address: Math "quiz." This is designed to show you that you know how to do the level of math required in this course. 1. a) (2 + 4 )(6 + 5) 2 6(12) 2 b) c) d) Calculate the average of the following numbers: 3 6 2 1 3

  • 12 Pages Chi-Square Test
    Chi-Square Test

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    ChiSquare Test Mon, Apr 19th, 2004 ChiSquare ( 2) Are 2 categorical variables related (correlated) or independent of each other? Compares # in categories that would be expected by chance (E) to # in categories actually observed (O) Null

  • 10 Pages Related Samples t-test
    Related Samples T-test

    School: Illinois State

    Course: Reasoning In Psychology Using Statistics

    Related Samples ttest Wed, Apr 7th Related Samples t Use when: 1 group of subjects is tested more than once (e.g., pretest / posttest).or 2 groups of related (or matched) subjects are measured once (e.g., twins) Uses same basic t formu

  • 10 Pages Central Tendency
    Central Tendency

    School: Illinois State

    Central Tendency Mon. Feb 16th, 2004 Central Tendency One number that summarizes an entire distribution. 3 measures of central tendency: Mean arithmetic average of scores Median score that divides distribution exactly in half (50% percentile) Mode m

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