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Performing Hypothesis Tests: Proportions
9. Hypothesis Testing for One Sample / Performing Hypothesis Tests: Proportions / Problem 8
Problem 8

Consider a hypothesis test for the proportion of a population, where the test statistic obtained is z=1.45z = -1.45. The claim being tested is that the population proportion is greater than 0.40.4.
i. Determine whether the test is two-tailed, right-tailed, or left-tailed.
ii. Calculate the pp-value for this test.
iii. At a significance level of α=0.05α = 0.05, should we reject the null hypothesis or fail to reject it?