For questions (6) and (7), shade the approximate area that would represent the p-value for the alternative hypothesis and z-score, and then calculate the p-value. Round to the nearest thousandth.
6. The alternative hypothesis is a right-tailed with a z-score = 0.21
7. The alternative hypothesis is a two-tailed with a z-score =−1.88
8. Two different students conduct a coin flipping experiment with a lefttailed alternative. The obtain the following test statistics:
Student #1: z =−2.05
Student #2: z =−1.28
Which of the test statistics has a smaller p-value and why?
9. List and briefly summarize the essential ingredients of the hypothesis test.
10. Suppose the following is to be tested: H0 : p= 0.4 and Ha : p≠ 0.4. Calculate the observed z test statistic for the following sample data: n= 80 and 25 test subjects have the characteristic of interest. Round to the nearest thousandth.