1_Chap23Stats

1_Chap23Stats - Review Assessment Test Chapters 2 and 3...

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Review Assessment: Test Chapters 2 and 3 User Elizabeth S Knowles Submitted 1/22/08 2:44 PM Name Test Chapters 2 and 3 Status Completed Score 78 out of 80 points Time Elapsed 1 hours, 21 minutes, and 57 seconds out of 3 hours and 0 minutes allowed. Instructions Question 1 2 out of 2 points Find the indicated measure. The weights (in pounds) of 30 newborn babies are listed below. Find P 16 . 5.5 5.7 5.8 5.9 6.1 6.1 6.4 6.4 6.5 6.6 6.7 6.7 6.7 6.9 7.0 7.0 7.0 7.1 7.2 7.2 7.4 7.5 7.7 7.7 7.8 8.0 8.1 8.1 8.3 8.7 Selected Answer: 6.1 Correct Answer: 6.1 Question 2 2 out of 2 points Solve the problem. The heights of the adults in one town have a mean of 67.5 inches and a standard deviation of 3.4 inches. What can you conclude from Chebyshev's theorem about the percentage of adults in the town whose heights are between 60.7 and 74.3 inches? Selected Answer: The percentage is at least 75% Correct Answer: The percentage is at least 75% Question 3 2 out of 2 points Find the percentile for the data point. Data set: 5 11 9 6 5 5 11 6 5 11 2 11 15 6 9 5 12 9 6 11; data point 6 Selected Answer: 35 Correct Answer: 35 Question 4 2 out of 2 points
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Find the range for the given data. The owner of a small manufacturing plant employs six people. As part of their personnel file, she asked each one to record to the nearest one-tenth of a mile the distance they travel one way from home to work. The six distances are listed below: 2.6 5.4 1.6 4.9 6.7 3.8 Compute the range. Selected Answer: 5.1 Correct Answer: 5.1 Question 5 2 out of 2 points Solve the problem. The following frequency distribution analyzes the scores on a math test. Find the indicated class midpoint or boundaries. The class midpoint of scores interval 95-99 Selected Answer: 97.0 Correct Answer: 97.0 Question 6 2 out of 2 points Construct a boxplot for the given data. Include values of the 5-number summary in all boxplots. The weights (in pounds) of 30 newborn babies are listed below. Construct a boxplot for the data set. 5.5 5.7 5.8 5.9 6.1 6.1 6.3 6.4 6.5 6.6 6.7 6.7 6.7 6.9 7.0 7.0 7.0 7.1 7.2 7.2 7.4 7.5 7.7 7.7 7.8 8.0 8.1 8.1 8.3 8.7 Selected Answer: Correct Answer: Question 7 2 out of 2 points Solve the problem. Round results to the nearest hundredth. Scores on a test have a mean of 71 and a standard deviation of 9. Michelle has a score of 89. Convert Michelle's score to a z-score.
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Selected Answer: 2 Correct Answer: 2 Question 8 2 out of 2 points Construct a boxplot for the given data. Include values of the 5-number summary in all boxplots. The test scores of 40 students are listed below. Construct a boxplot for the data set. 25 35 43 44 47 48 54 55 56 57 59 62 63 65 66 68 69 69 71 72 72 73 74 76 77 77 78 79 80 81 81 82 83 85 89 92 93 94 97 98 Selected Answer: Correct Answer: Question 9 2 out of 2 points Find the standard deviation of the data summarized in the given frequency distribution.
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