Use the given sample sizes and numbers of successes to find the P-value for the hypothesis test.ħ. Assume that you plan to use a significance level of alpha = 0.05 to test the claim that p1 = p2. random sampling of sixty pitchers from the National League and fifty-two pitchers from the American League showed that 19 National and 11 American League pitchers had E.R.A’s below 3.5.Ħ. Use the given sample sizes and numbers of successes to find the z test statistic for the hypothesis test.ĥ. Find the number of successes x suggested by the given statement.Īmong 720 people selected randomly from among the residents of one city, 13.89% were found to be living below the official poverty line.Īssume that you plan to use a significance level of alpha = 0.05 to test the claim that p1 = p2. The test statistic in a right-tailed test is z = 1.43.Ĥ. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). Use the given information to find the P-value. deaths of the elderly attributable to residential falls is more than 0.10, and the sample statistics include n = 800 deaths of the elderly with 15% of them attributable to residential falls.ģ. Pq/n The claim is that the proportion of accidentalĢ. Find the critical z value used to test a null hypothesis.įind the value of the test statistic z using z = P-P/? Assume that the data has a normal distribution and the number of observations is greater than fifty.
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