1. Before the last presidential debates, 50% of registered votes indicated that they planned to vote for the incumbent president.In a recent survey of 1,200
1. Before the last presidential debates, 50% of registered votes indicated that they planned to vote for the incumbent president. In a recent survey of 1,200 registered voters after the debates, 636 indicated they plan to vote for the incumbent president. Has there been a significant increase in the share of registered voters who plan to vote for the incumbent president?
a. | State the null and alternative hypotheses to be tested. List type I and type II error. |
b. | Calculate the test statistic. |
C. | The null hypothesis will be tested using α = .05. Determine the critical values for this test. |
d. | Calculate the p value . What do you conclude about an increase in registered voters? |
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Authors: William G Zikmund, Barry J. Babin, Jon C. Carr, Mitch Griff
8th Edition
978-032432062, 0324320620, 1439080674, 978-1439080672
