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Question 21 3 out of 3 points Express the null hypothesis and the alternative hypothesis in symbolic form for a test to support this claim. Use the correct symbol (up, a) for the indicated parameter. The owner of a football team claims that the average attendance at games is over 77,100, and he is therefore justified in moving the team to a city with a larger stadium. Question 22 3 out of 3 points Assume that the data has a normal distribution and the number of observations is greater than fifty. Find the critical z value used to test a null hypothesis. a = 0.05 for a left-tailed test. Question 23 3 out of 3 points Find the value of the test statistic z using z = P-P Pq The claim is that the proportion of accidental 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. Question 24 3 out of 3 points Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p, is less than 1 in every ten thousand. Assuming that a hypothesis test to support this claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms. Question 25 5 out of 5 points According to a recent poll 53% of Americans would vote for the incumbent president. If a random sample of 100 people results in 45% who would vote for the incumbent, test the claim that the actual percentage is 53%. Use a 0.10 significance level. State the sample percentage and sample size