MATH 10041 Lecture Notes - Lecture 30: Null Hypothesis, Test Statistic, Summary Statistics
30 Mar 2019
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9. 4: hypothesis testing for means: conduct a hypothesis test for a population mean. Four steps for hypothesis testing: hypothesize, state your hypotheses about the population parameter, prepare, choose a significance level and test statistic, check conditions and assumptions, compute to compare, compute a test statistic and p-value. Just as with hypothesis tests for proportions, hypothesis tests can be one-sided or two- sided depending on the research question. The choice of the alternative hypothesis determines how the p-value is calculated. Using technology: both the test-statistic and p-value can be computed using technology, statcrunch: Stats > t stats > one sample > with summary. Using the ti-84 calculator: to conduct a hypothesis test for a mean with one population on the ti-84 calculator, push stat > tests then select the t-test option. If your data is in a list, select data, enter the number in h0, the list the data is in.
