KP390 Lecture Notes - Lecture 9: Null Hypothesis, Standard Score, Alternative Hypothesis
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There is no di erence in the calcium intake of people with incomes below poverty and people of regular income. Those who are in the poverty level intake less calcium then those of regular income. H0 : u = 800mg (because there is no di erence and they would intake 800) Hi : x bar does not equal 800mg (there is a di erence between incomes) We fail to reject the null hypothesis. Analytic view - analysis of all possible outcomes. Contain 10 white ones and 4 orange ones. P(white) = 10/14 = 0. 714 (or 71. 4%) Note: this is also the probability of not selecting a white one. The probability of an event is always between 0 and 1 because 1 is 100% The probbaluty of an event that cannot occur is 0. The probability of an event that must occur is 1. Casino overall performance based on huge number of individual bets.
