Test10B - Test 1O B AP Statistics Name Directions Work on...

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Test 1 OB AP Statistics Name: Directions: Work on these sheets. Answer completely, but be concise. A normalprobability table - is attached. Part 1: Multiple Choice. Circle the letter corresponding to the best answer. 1. The value of z* required for a 70% confidence interval is (a) -0.5244 (b) 1.036 (c) 0.5244 (d) 0.6179 (e) The answer can't be determined from the information given. (f) None of the above. The answer is 2. A significance test allows you to reject a hypothesis Ho in favor of an alternative Ha at the 5% level of significance. What can you say about significance at the 1% level? (a) Ho can be rejected at the 1% level of significance. (b) There is insufficient evidence to reject Ho at the 1% level of significance. (c) There is sufficient evidence to accept Ho at the 1 % level of significance. (d) Ha can be rejected at the 1 % level of significance. (e) The answer can't be determined from the information given. 3. A 95% confidence interval for the mean p of a population is computed from a random sample and found to be 9 * 3. We may conclude that (a) There is a 95% probability that p is between 6 and 12. (b) There is a 95% probability that the true mean is 9 and a 95% chance the true margin of error is 3. (c) If we took many, many additional random samples and from each computed a 95% confidence interval for p, approximately 95% of these intervals would contain
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This note was uploaded on 11/03/2011 for the course STATS 101 taught by Professor Smith during the Spring '11 term at University of Colorado Denver.

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Test10B - Test 1O B AP Statistics Name Directions Work on...

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