Question: Once a test statistic has been calculated, we calculate the P-value by using what we know about the distribution of the test statistic. For the


Once a test statistic has been calculated, we calculate the P-value by using what we know about the distribution of the test statistic. For the test of proportions that meets the sample conditions (like in Question 1), we use the standard normal curve to calculate the P-value as an area under the standard normal curve. Since the P-value provides evidence used in support of the alternative hypothesis, the area we measure depends on the alternative hypothesis. Ask yourself: "If the null is in fact true, how likely are the data that you've gathered?"- Go to https://domathpathways.shinyapps.io/NormalDist/ @ and select "Find Probability." Suppose that a test statistic of > = -1.2 has been obtained. Then, The P-value equals: When the alternative is: The P-value is: (Rounded to four decimal places) How "unlikely" it is that we observed the sample data that Lower-tailed resulted in a test statistic of z=-1.2 or lower. (p
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