The Department of Transportation reports that out of all fatal crashes, 6% of the drivers were distracted at the time of the crash. You take a sample of 345 fatal crashes in Washington State and find that 25 of the drivers were distracted. Hypothesis Test: You want to test whether the proportion of crashes involving distracted drivers in Washington State is the same as the national average, to a significance level of 0.05. a. What should the null and alternative hypotheses look like? Ho: p = 0.06 HA: P = 0.06 ( Ho: μ = 25 Η Α: μ + 25 Ho: P1 = 0 HA: B1 0 b. Calculate the value of the point estimate. c. Does this pass the success-failure condition? Yes, this test passes the success-failure condition. No, this test does not pass the success-failure condition. d. Compute the standard error. e. Compute the test statistic. f. What is the p-value? g. What conclusion should we draw regarding H? O Fail to reject H O Reject H

The Department of Transportation reports that out of all fatal crashes, 6% of the drivers were distracted at the time of the crash. You take a sample of 345 fatal crashes in Washington State and find that 25 of the drivers were distracted. Hypothesis Test: You want to test whether the proportion of crashes involving distracted drivers in Washington State is the same as the national average, to a significance level of 0.05. a. What should the null and alternative hypotheses look like? Ho: p = 0.06 HA: P = 0.06 ( Ho: μ = 25 Η Α: μ + 25 Ho: P1 = 0 HA: B1 0 b. Calculate the value of the point estimate. c. Does this pass the success-failure condition? Yes, this test passes the success-failure condition. No, this test does not pass the success-failure condition. d. Compute the standard error. e. Compute the test statistic. f. What is the p-value? g. What conclusion should we draw regarding H? O Fail to reject H O Reject H

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 3E

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