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    QUIZ HELP: Null and Alternate Hypothesis, P-value, critical value and test statistic

    My quiz is due tomorrow and 10% of my grade. I need help doing it because I'm pretty sure I have no idea what I'm doing. The first question is A researcher claims that the average age of a woman before she has her first child is greater than the 1990 mean age of 26.2 years, on the basis...
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    Binomial Distribution

    I really need help with this homework. I've been on one question for over an hour. The Question is The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best reate with 80 % of its flights arriving...