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Unformatted text preview: es with a variance of .03. If we randomly select three bolts from this process: What is the
probability the mean length of the bolt is at most 3.1 inches?
A. 84.13%
B. 100 %
C. 71.57 %
D. 28.43 %
E. 15.87 % AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample mean 1581 Chapter 01  An Introduction to Business Statistics 52. The spread of the sampling distribution of
is ____________ the spread of the
corresponding population distribution sampling distribution.
A. Larger than
B. Smaller than
C. The same as
D. Exactly ½ AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Sampling distribution of sample mean 53. For large samples, the sampling distribution of
of _____. is approximately normal with a mean A.
B.
C.
D. Z AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Medium
Topic: Sampling distribution of sample mean 54. _____ says that if the sample size is sufficiently large, then the sample means are
approximately normally distributed.
A. Cluster sampling
B. Sampling error
C. Sampling distribution of the mean
D. Central Limit Theorem AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Medium
Topic: Central limit theorem 1582 Chapter 01  An Introduction to Business Statistics 55. If a sample size is at least _____, then for any sampled population, we can conclude that
the sample means are approximately normal.
A. 25
B. 20
C. 30
D. 50 AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Easy
Topic: Central limit theorem 56. If we wish to estimate a population parameter by using a sample statistic, we are using
_____.
A. Cluster sampling
B. Point estimation
C. Random sampling
D. Response bias AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Hard
Topic: Sampling distribution 57. The mean of the sampling distribution of the sample proportion is equal to _____ when
the sample size is sufficiently large.
A. µ
B. p
C. p * n
D. (1p) AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Sampling distribution of sample proportion 1583 Chapter 01  An Introduction to Business Statistics 58. If the sampled population is finite and at least _____ times larger than the sample size, the
standard deviation of
A. 5
B. 20
C. 30
D. 10 decreases as the sample size increases. AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Sampling distribution of sample proportion 59. The notation for the standard deviation of the sampling distribution of the sample mean is
__________.
A.
B. σx
C.
D. AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Medium
Topic: Sampling distribution of sample mean 60. The sampling distribution of the sample mean is a normal distribution for ________
sample sizes regardless of the shape of the corresponding population distribution.
A. Random
B. Large
C. Larger than 50
D. Small AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Sampling distribution of sample mean 1584 Chapter 01  An Introduction to Business Statistics 61. A theorem that allows us to use the normal probability distribution to approximate the
sampling distribution of sample means and sample proportions whenever the sample size is
large is known as the _______________.
A. Cluster sampling
B. Sampling error
C. Sampling distribution of the mean
D. Central Limit Theorem AACSB: Reflective Thinking
Bloom's: Knowledge
Difficulty: Medium
Topic: Central limit theorem 62. As the sample size increases the variability of the sampling distribution of the mean
______________.
A. Increases
B. Stays the same
C. Is variable
D. Decreases AACSB: Reflective Thinking
Bloom's: Analysis
Difficulty: Medium
Topic: Sampling distribution of sample mean 63. As the sample size ___________, the standard deviation of the population of all sample
proportions increases.
A. Increases
B. Stays the same
C. Is variable
D. Decreases AACSB: Reflective Thinking
Bloom's: Analysis
Difficulty: Medium
Topic: Sampling distribution of sample mean 1585 Chapter 01  An Introduction to Business Statistics 64. The population of all _________________ proportions is described by sampling
distribution of
A. Population
B. Random
C. Observed
D. Sample . AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Sampling distribution of sample proportion 65. The _______________________ of a sample statistic is the probability distribution of the
population of all possible values of the sample statistic.
A. Sample mean
B. Sampling distribution
C. Probability
D. Observations AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Sampling distribution 66. The ___________ is a minimumvariance unbiased point estimate of the mean of a
normally distributed population.
A. Sample mean
B. Sample variance
C. Sample standard deviation
D. Observed mean AACSB: Reflective Thinking
Bloom's: Comprehension
Difficulty: Medium
Topic: Sampling distribution of sample mean 1586 Chapter 01  An Introduction to Business Statistics 67. Find
A. .9944
B. .4483
C. .5517
D. .1056 AACSB: Analytic
Bloom's: Application
Difficulty: Medium...
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This document was uploaded on 01/20/2014.
 Winter '14

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