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10 November, 08:49

The average income of American women who work full-time and have only a high school degree is $33, 230. You wonder whether the mean income of female graduates from your local high school who work full-time but have only a high school degree is different from the national average. You obtain income information from an SRS of 62 female graduates who work full-time and have only a high school degree and find that x = $32, 052. What are your n and alternative hypotheses?

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  1. 10 November, 10:02
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    Answer: n = 62

    Null hypothesis H0 : x = $33,230

    Alternative hypothesis Ha : x $33,230

    Step-by-step explanation:

    n = number of samples used for a statistical analysis.

    n = 62

    In this analysis only 62 samples of female graduates who work full-time and have only a high school degree

    The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean.

    While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

    Therefore, for the case above;

    H0 : x = $33,230

    Ha : x $33,230

    Where x is the average income of American women who work full-time and have only a high school degree
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