Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_vufsw-paired_samples-1275-en_vufsw-paired_samples-1275-en
    namevufsw-paired samples-1275-en
    sectioninferential statistics/parametric techniques/t-test/paired samples
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE, FALSE
    Typetest choice
    ProgramNA
    LanguageEnglish
    Levelstatistical thinking

    Question

    A researcher wants to know if workers score better in test B than in test A. For this purpose, she draws a random sample of 10 workers who take both tests. The tests concern the same content and in each one of them, the maximum score is 100 points.

    The data are the following:

    Worker Score test A
    		 Score test B
    		 Difference (B – A)
    1
    		 95
    		 90
    		 -5
    2
    		 45
    		 65
    		 20
    3
    		 61
    		 65
    		 4
    4
    		 88
    		 75
    		 -13
    5
    		 91
    		 92
    		 1
    6
    		 32
    		 45
    		 13
    7
    		 44
    		 65
    		 21
    8
    		 63
    		 67
    		 4
    9
    		 89
    		 84
    		 -5
    10
    		 64
    		 63
    		 -1
    Mean 67.2
    		 71.1
    		 3.9

    Which statistical test should be used to test the hypothesis that workers score better in test B than in test A?


    1. FALSE: A test for a proportion
    2. FALSE: A one-sample t-test for the mean
    3. FALSE: An independent t-test
    4. TRUE: A dependent t-test
    5. FALSE: A chi-squared test

    1. False
    2. False
    3. False
    4. True
    5. False