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1. Identify the null hypothesisH 0 and the alternative hypothesisH 1 . A researcher claims that 62% of voters favor gun control. Select one: a.

1. Identify the null hypothesisH0and the alternative hypothesisH1. A researcher claims that 62% of voters favor gun control. Select one: a. Ho: p 0.62 H1: p < 0.62 b. Ho: p = 0.62 H1: p 0.62 c. Ho: p 0.62 H1: p = 0.62 d. Ho: p < 0.62 H1: p 0.62

2. Assume that the data has a normal distribution and the number of observations is greater than 50. Find the criticalzvalue used to test a null hypothesis. a= 0.05 for a left-tailed test. Select one: a. -1.645 b.1.645 c. -1.96 d.1.96 3. Use the given information to find theP-value. The test statistic in a right-tailed test isz= 1.43. Select one: a. 0.0764 b. 0.4236 c. 0.5000 d. 0.0434 4. Determine whether the hypothesis test involves a sampling distribution of means that is a normal distribution, Studenttdistribution or neither. Claim:m= 977. Sample data:n= 25, x-bar = 984,s= 25. The sample data appear to come from a normally distributed population withs= 28. Select one: a. Normal b. Neither c. Studentt 5. Identify the null hypothesisand the alternative hypothesis. A cereal company claims that the means weight of the cereal in its packets is at least 14 oz. Select one: a. Ho: = 14 H1: < 14 b. Ho: > 14 H1: 14 c. Ho: < 14 H1: 14 d. Ho: = 14 H1: > 14 6. A medical school claims that more than 28% of its students plan to go onto general practice. It is found that among a random sample of 130 of the schools students, 32% of them plan to go into general practice. Find theP-value for a test of the schools claim. Select one: a. 0.1635 b. 0.1539 c. 0.3461 d. 0.3078 7. Find the critical value or values ofbased on the given information. H1: > 26.1, n = 9, = 0.01 Select one: a. 1.646 b. 21.666 c. 20.090 d. 2.088 8. Assume that a hypothesis is test of a given claim will be conducted. Identify the type I error for the test. Select one: a. The error of failing to reject the hypothesis that the mean is 30 miles per gallon when it isactually greater than 30 miles per gallon. b. The error of rejecting the hypothesis that the mean is more than 30 miles per gallon when itis really more than 30 miles per gallon. c. The error of rejecting the hypothesis that the mean is 30 miles per gallon when it really isgreater than 30 miles per gallon. 9. Find the number of successes x suggested by the given statement. A computer manufacturer randomly selects 2360 of its computers for quality assurance and finds that 2.54% of these computers are found to be defective. Select one: a. 58 b. 60 c. 63 d. 65 10. From the sample statistics, find the value of used to test the hypothesis that the population proportions are equal. n1= 507 n2= 140 x1= 194 x2= 35 Select one: a. 0.566 b. 0.257 c. 0.353 d. 0.642

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