One-Sample Hypothesis Testing Cases Speedx Payment Times

Hypothesis Testing Cases Name Course Tutors Name Date Case 1 Election Results Case 1 The problem is about a decision on whether television networks can predict which of the two candidates (George Bush or Al Gore) will be the winner of the with 90 confidence. The winner is required to win more than 50 of the votes (Black, 2011). The first stage is to determine the null and alternative hypothesis Null hypothesis There will be no clear winner in this election. This means the number of people who voted for George Bush are 50 percent and those who voted Al Gore would be 50 percent Alternative hypothesis Fewer than 50 of the population would vote for George W. Bush The Second stage is to summarize the data collected by the pollsters into a test statistic 407 votes were recorded for George W. Bush out of 765 this is a proportion of 53.2 percent.The standard deviation of all sample proportions is related to the sample size, n as indicated below. Thus Square root of (0.50) X (1 - 0.50) divided by the sample size (765) 0.0180 The test statistic z (0.532-0.5)/0.018 1.778 The third stage is to determine the p-value. Since