Inference for the Mean

    Input type

    SAMPLE STATISTICSDATA

    Number of Samples

    Enter the null hypothesis mean

    Independent or dependent samples?

    INDEPENDENTDEPENDENT

    Distribution Type for Test?

    z-TESTt-TEST
    Enter Population Standard Deviations

    Variance

    POOLEDNOT POOLED
    For df use:

    Alternative Hypothesis

    <>≠

    Confidence Interval?

    INCLUDE

    Confidence Level (in decimal)

    Enter Sample Statistics

    Sample Sizes

    Sample Means

    Sample Standard Deviations

    Enter Sample Data

    RESULTS
    Test Statistic

    p-value

    Degrees of Freedom

    Confidence Interval

    Sample Information

    \(n\)

    \(\bar x\)

    \(s\)

    \(n_d\)

    \(\bar x_d\)

    \(s_d\)

    \(n_1\)

    \(\bar x_1\)

    \(s_1\)

    \(n_2\)

    \(\bar x_2\)

    \(s_2\)