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Unformatted text preview: Topic: Sampling distribution of sample mean 1587 Chapter 01  An Introduction to Business Statistics 68. A PGA (Professional Golf Association) tournament organizer is attempting to determine
whether hole (pin) placement has a significant impact on the average number of strokes for
the 13th hole on a given golf course. Historically, the pin has been placed in the front right
corner of the green, and the historical mean number of strokes for the hole has been 4.25, with
a standard deviation of 1.6 strokes. On a particular day during the most recent golf
tournament, the organizer placed the hole (pin) in the back left corner of the green. 64 golfers
played the hole with the new placement on that day. Determine the probability of the sample
average number of strokes exceeding 4.75.
A. .9938
B. .4013
C. .0062
D. .3783 AACSB: Analytic
Bloom's: Application
Difficulty: Hard
Topic: Sampling distribution of sample mean 69. Packages of sugar bags for Sweeter Sugar Inc. have an average weight of 16 ounces and a
standard deviation of 0.2 ounces. The weights of the sugar bags are normally distributed.
What is the probability that 16 randomly selected packages will have a weight in excess of
16.075 ounces?
A. .0500
B. .3520
C. .9332
D. .0668 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample mean 1588 Chapter 01  An Introduction to Business Statistics 70. The population of lengths of aluminum  coated steel sheets is normally distributed with a
mean of 30.05 inches and a standard deviation of 0.3 inches. What is the probability that
average length of a steel sheet from a sample of 9 units is more than 29.95 inches long?
A. .8413
B. .6293
C. .3707
D. .1587 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample mean 71. Find
A. .1587
B. .8413
C. .6293
D. .3707 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample mean 1589 Chapter 01  An Introduction to Business Statistics 72. Find
A. 1.000
B. 2.25
C. .9878
D. .0122 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample mean 73. Find
A. .0764
B. .9998
C. .9236
D. .0001 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample mean 1590 Chapter 01  An Introduction to Business Statistics 74. Find
A. 0.20
B. 200
C. 20
D. 2.00 AACSB: Analytic
Bloom's: Application
Difficulty: Hard
Topic: Sampling distribution of sample mean 75. Find
A. .8413
B. .4602
C. .5398
D. .1587 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample mean 1591 Chapter 01  An Introduction to Business Statistics 76. Find
A. .9786
B. .9999
C. .0214
D. .9893 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample mean 77. The number of defectives in the samples of 50 observations each is the following: 5, 1, 1,
2, 3, 3, 1, 4, 2, 3. What is the estimate of the population proportion of defectives?
A. .25
B. .50
C. .05
D. .42 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample proportion 1592 Chapter 01  An Introduction to Business Statistics 78. The number of defectives in the samples of 100 observations each is the following: 1, 2, 1,
0, 2, 3, 1, 4, 2, 1. What is the estimate of the population proportion of defectives?
A. .017
B. .17
C. .016
D. .16 AACSB: Analytic
Bloom's: Application
Difficulty: Medium
Topic: Sampling distribution of sample proportion 79. Suppose that 60 percent of the voters in a particular region support a candidate. Find the
probability that a sample of 1,000 voters would yield a sample proportion in favor of the
candidate within 4 percentage points of the actual proportion.
A. .0155
B. .9952
C. .9484
D. .9902 AACSB: Analytic
Bloom's: Application
Difficulty: Hard
Topic: Sampling distribution of sample proportion 1593 Chapter 01  An Introduction to Business Statistics 80. Suppose that 60 percent of the voters in a particular region support a candidate. Find the
probability that a sample of 1,000 voters would yield a sample proportion in favor of the
candidate within 2 percentage points.
A. .9015
B. .8030
C. .0155
D. .7939 AACSB: Analytic
Bloom's: Application
Difficulty: Hard
Topic: Sampling distribution of sample proportion 81. An unbiased estimate of
A. s
B. is _____. C.
D. σ AACSB: Analytic
Bloom's: Knowledge
Difficulty: Medium
Topic: Sampling distribution of sample mean 1594 Chapter 01  An Introduction to Business Statistics 82. A random sample of size 36 is taken from a population with mean 50 and standard
deviation 5. The sampling distribution of
A. Cannot be determined
B. Is skewed to the left
C. Normal
D. Is skewed to the right ____________________. AACSB: Analytic
Bloom's: Knowledge
Difficulty: Medium
Topic: Sampling distribution of sample mean 83. A random sample of size 36 is taken from a population with mean 50 and standard
deviation 5. What is
A. 50
B. 5
C. 8.33
D. 0.833 ? AACSB: Analytic
Bloom's: A...
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 Winter '14

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