1-20chapter stats

and the sample standard deviation is 10 lbs we would

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Unformatted text preview: public supports further increase in cigarette taxes. The opinion poll recently sampled 1500 voting age citizens. 1020 of the sampled citizens were in favor of an increase in cigarette taxes. The state government would like to decide if there is enough evidence to establish whether the proportion of citizens supporting an increase in cigarette taxes is significantly greater than .66. What is the critical value (given in terms of the value of the test statistic) at α = .01? A. 1.282 B. 1.645 C. 1.960 D. 2.326 AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Hypothesis testing 68. A recent study conducted by the state government attempts to determine whether the voting public supports further increase in cigarette taxes. The opinion poll recently sampled 1500 voting age citizens. 1020 of the sampled citizens were in favor of an increase in cigarette taxes. The state government would like to decide if there is enough evidence to establish whether the proportion of citizens supporting an increase in cigarette taxes is significantly greater than .66. What is the sample value of the test statistic? A. 1.348 B. 1.661 C. 3.452 D. 1.635 AACSB: Analytic Bloom's: Application Difficulty: Medium Topic: Hypothesis testing 1-780 Chapter 01 - An Introduction to Business Statistics 69. A recent study conducted by the state government attempts to determine whether the voting public supports further increase in cigarette taxes. The opinion poll recently sampled 1500 voting age citizens. 1020 of the sampled citizens were in favor of an increase in cigarette taxes. The state government would like to decide if there is enough evidence to establish whether the proportion of citizens supporting an increase in cigarette taxes is significantly greater than .66. What is the p-value for this test? A. 0511 B. 1022 C. 0548 D. 0446 AACSB: Analytic Bloom's: Application Difficulty: Medium Topic: Hypothesis testing 70. A null hypothesis H0: µ ≥ 2.4 is not rejected at a significance level of 0.04. (α = 0.04). The standard deviation for the normally distributed population is known to be 0.40. Determine the Type II error, if we assume that the actual mean is 2.125 based on a sample size of 16. A. 8413 B. 1587 C. 3413 D. 3177 AACSB: Analytic Bloom's: Application Difficulty: Hard Topic: Type I or Type II error 1-781 Chapter 01 - An Introduction to Business Statistics 71. When testing a null hypothesis about a single population mean and the population standard deviation is unknown, if the sample size is less than 30, one compares the computed test statistic for significance with a value from the ___________ distribution. A. t B. Z C. Binomial D. Chi-square AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Hypothesis testing 72. For a given hypothesis test, if we do not reject H0, and H0 is true. A. No error has been committed. B. Type I error has been committed. C. Type II error has been committed. D. Type III error has been committed. AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Easy Topic: Type I or Type II error 73. If a null hypothesis is rejected at a significance level of .01, it will ______ be rejected at a significance level of .05. A. Always B. Sometimes C. Never AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Hard Topic: Hypothesis testing 1-782 Chapter 01 - An Introduction to Business Statistics 74. If a null hypothesis is rejected at a significance level of .05, it will ______ be rejected at a significance level of .01. A. Always B. Sometimes C. Never AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Hard Topic: Hypothesis testing 75. If a null hypothesis is not rejected at a significance level of .05, it will ______ be rejected at a significance level of .01. A. Always B. Sometimes C. Never AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Hard Topic: Hypothesis testing 76. If a two-sided null hypothesis is rejected for a single mean at a given significance level, the corresponding one- sided null hypothesis (i.e., the same sample size, the same standard deviation, and the same mean) will _________ be rejected at the same significance level. A. Always B. Sometimes C. Never AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Hard Topic: Hypothesis testing 1-783 Chapter 01 - An Introduction to Business Statistics 77. If a two-sided null hypothesis cannot be rejected for a single mean at a given significance level, then the corresponding one-sided null hypothesis (i.e., the same sample size, the same standard deviation, and the same mean) will _________ be rejected at the same significance level. A. Always B. Sometimes C. Never AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Hard Topic: Hypothesis testing 78. If a one-sided null hypothesis for a single mean cannot be rejected at a given significance level, then the corresponding two-sided null hypothesis (i.e., the same sample size, the same standard deviation, and the same mean) will _________ be rejected at the same significance level. A. Always B. Som...
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This document was uploaded on 01/20/2014.

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