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10 we can estimate the sampling distribution of with

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Unformatted text preview: at it makes the variance an unbiased estimate of the population variance. TRUE AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Hard Topic: Sampling distribution 1-567 Chapter 01 - An Introduction to Business Statistics 10. The standard deviation of all possible sample proportions increases as the sample size increases. FALSE AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Sampling distribution of sample proportion 11. The central limit theorem states that as sample size increases, the population distribution more closely approximates a normal distribution. FALSE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Central limit theorem 12. If a population is known to be normally distributed, then it follows that the sample standard deviation must equal σ. FALSE AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Sampling distribution 13. If the sampled population is exactly normal distribution, then the sampling distribution of is also expected to be normal regardless of the sample size. TRUE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Sampling distribution of sample mean 1-568 Chapter 01 - An Introduction to Business Statistics 14. If a population is known to be normally distributed, then it follows that the sample mean must equal the population mean. FALSE AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Sampling distribution of sample mean 15. If p = .8 and n = 50, then we can conclude that the sampling distribution of approximately a normal distribution. TRUE is AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Easy Topic: Sampling distribution of sample proportion 16. If p = .9 and n = 40, then we can conclude that the sampling distribution of approximately a normal distribution. FALSE is AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Sampling distribution of sample proportion 17. If the sampled population distribution is skewed, then in most cases the sampling distribution of the mean can be approximated by the normal distribution if the sample size n is at least 30. TRUE AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Easy Topic: Sampling distribution of sample mean 1-569 Chapter 01 - An Introduction to Business Statistics 18. In order to select a stratified random sample, we divide the population into overlapping groups of similar elements. FALSE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Non-random Sampling 19. As the sample size increases, the standard deviation of the sampling distribution increases. FALSE AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Easy Topic: Sampling distribution 20. The standard deviation of the sampling distribution of the sample mean is σ. FALSE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Sampling distribution of sample mean 21. The mean of the sampling distribution of population. TRUE is always equal to the mean of the sampled AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Sampling distribution of sample mean 1-570 Chapter 01 - An Introduction to Business Statistics 22. The sampling distribution of the sample mean is developed by repeatedly taking samples of size n and computing the sample means and reporting the resulting sample means in the form of a probability distribution. TRUE AACSB: Reflective Thinking Bloom's: Application Difficulty: Medium Topic: Sampling distribution of sample mean 23. If the sample size n is infinitely large, then TRUE is an unbiased estimator of. . AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Sampling distribution of sample mean 24. The sample standard deviation s is an unbiased estimator of the population standard deviation . FALSE AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Sampling distribution of sample mean 25. A common practice in selecting a sample from a large geographic area is multi-stage cluster sampling. TRUE AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Non-random Sampling 1-571 Chapter 01 - An Introduction to Business Statistics 26. A low response rate has no effect on the validity of a survey's findings. FALSE AACSB: Reflective Thinking Bloom's: Comprehension Difficulty: Medium Topic: Non-random Sampling Multiple Choice Questions 27. A ‘Yes or No' question is _____________. A. Dichotomous B. Multiple Choice C. Open-ended D. Systematic AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Surveys 28. _____________ occurs when some population elements are excluded from the process of selecting the sample. A. Non-response B. Error of observation C. Undercoverage D. Sampling error AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Sampling 1-572 Chapter 01 - An Introduction to Business Statistics 29. _____________ is the difference between a numerical description of the populat...
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