Essentials of Statistics (6th Edition)
Essentials of Statistics (6th Edition)
6th Edition
ISBN: 9780134685779
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 6.6, Problem 18BSC

Sleepwalking Assume that 29.2% of people have sleepwalked (based on “Prevalence and Comorbidity of Nocturnal Wandering in the U.S. Adult General Population,” by Ohayon et al., Neurology, Vol. 78, No. 20). Assume that in a random sample of 1480 adults. 455 have sleepwalked.

a. Assuming that the rate of 29.2% is correct, find the probability that 455 or more of the 1480 adults have sleepwalked.

b. Is that result of 455 or more significantly high?

c. What does the result suggest about the rate of 29.2%?

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Chapter 6 Solutions

Essentials of Statistics (6th Edition)

Ch. 6.1 - Standard Normal Distribution. In Exercises 912,...Ch. 6.1 - Standard Normal Distribution. In Exercises 912,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1316,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1316,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1316,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1316,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Standard Normal Distribution. In Exercises 1736,...Ch. 6.1 - Finding Bone Density Scores. In Exercises 3740...Ch. 6.1 - Finding Bone Density Scores. In Exercises 3740...Ch. 6.1 - Finding Bone Density Scores. In Exercises 3740...Ch. 6.1 - Finding Bone Density Scores. In Exercises 3740...Ch. 6.1 - Critical Values. In Exercises 4144, find the...Ch. 6.1 - Critical Values. 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In Exercises 912, find the indicated IQ...Ch. 6.2 - IQ Scores. In Exercises 912, find the indicated IQ...Ch. 6.2 - IQ Scores. In Exercises 912, find the indicated IQ...Ch. 6.2 - IQ Scores. In Exercises 912, find the indicated IQ...Ch. 6.2 - Seat Designs. In Exercises 1320, use the data in...Ch. 6.2 - Seat Designs. In Exercises 1320, use the data in...Ch. 6.2 - Seat Designs. In Exercises 1320, use the data in...Ch. 6.2 - Seat Designs. In Exercises 1320, use the data in...Ch. 6.2 - Seat Designs. In Exercises 1320, use the data in...Ch. 6.2 - Seat Designs. In Exercises 1320, use the data in...Ch. 6.2 - Seat Designs. In Exercises 1320, use the data in...Ch. 6.2 - Seat Designs. 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In Exercises 58,...Ch. 6.4 - Elevator Safety Example 2 referred to an elevator...Ch. 6.4 - Elevator Safety Exercise 9 uses = 189 lb, which...Ch. 6.4 - Mensa Membership in Mensa requires a score in the...Ch. 6.4 - Designing Manholes According to the website...Ch. 6.4 - Water Taxi Safety Passengers died when a water...Ch. 6.4 - Vending Machines Quarters are now manufactured so...Ch. 6.4 - Southwest Airlines Seats Southwest Airlines...Ch. 6.4 - Coke Cans Assume that cans of Coke are filled so...Ch. 6.4 - Redesign of Ejection Seats When women were finally...Ch. 6.4 - Loading a Tour Boat The Ethan Allen tour boat...Ch. 6.4 - Doorway Height The Boeing 757-200 ER airliner...Ch. 6.4 - Loading Aircraft Before every flight, the pilot...Ch. 6.4 - Correcting for a Finite Population In a study of...Ch. 6.5 - Normal Quantile Plot Data Set 1 Body Data in...Ch. 6.5 - Normal Quantile Plot After constructing a...Ch. 6.5 - Small Sample Data set 29 Coin Weights in Appendix...Ch. 6.5 - Assessing Normality The accompanying histogram is...Ch. 6.5 - Prob. 5BSCCh. 6.5 - Prob. 6BSCCh. 6.5 - Prob. 7BSCCh. 6.5 - Interpreting Normal Quantile Plots. In Exercises...Ch. 6.5 - Prob. 9BSCCh. 6.5 - Constructing Normal Quantile Plots. In Exercises...Ch. 6.5 - Prob. 18BSCCh. 6.5 - Constructing Normal Quantile Plots. In Exercises...Ch. 6.5 - Constructing Normal Quantile Plots. In Exercises...Ch. 6.5 - Transformations The heights (in inches) of men...Ch. 6.5 - Lognormal Distribution The following are the...Ch. 6.6 - Continuity Correction In testing the assumption...Ch. 6.6 - Checking Requirements Common tests such as the...Ch. 6.6 - Notation Common tests such as the SAT, ACT, LSAT,...Ch. 6.6 - Distribution of Proportions Each week, Nielsen...Ch. 6.6 - Using Normal Approximation. In Exercises 58, do...Ch. 6.6 - Using Normal Approximation. In Exercises 58, do...Ch. 6.6 - Using Normal Approximation. In Exercises 58, do...Ch. 6.6 - Using Normal Approximation. In Exercises 58, do...Ch. 6.6 - Car Colors. In Exercises 912, assume that 100 cars...Ch. 6.6 - Car Colors. In Exercises 912, assume that 100 cars...Ch. 6.6 - Car Colors. In Exercises 912, assume that 100 cars...Ch. 6.6 - Car Colors. In Exercises 912, assume that 100 cars...Ch. 6.6 - Tennis Replay In the year that this exercise was...Ch. 6.6 - Tennis Replay Repeat the preceding exercise after...Ch. 6.6 - Smartphones Based on an LG smartphone survey,...Ch. 6.6 - Eye Color Based on a study by Dr. P. Sorita at...Ch. 6.6 - Mendelian Genetics When Mendel conducted his...Ch. 6.6 - Sleepwalking Assume that 29.2% of people have...Ch. 6.6 - Voters Lying? In a survey of 1002 people, 701 said...Ch. 6.6 - Cell Phones and Brain Cancer In a study of 420,095...Ch. 6.6 - Births The probability of a baby being born a boy...Ch. 6.6 - Overbooking a Boeing 767-300 A Boeing 767-300...Ch. 6 - Bone Density Test. In Exercises 14, assume that...Ch. 6 - Bone Density Test. In Exercises 14, assume that...Ch. 6 - Bone Density Test. In Exercises 14, assume that...Ch. 6 - Bone Density Test. In Exercises 14, assume that...Ch. 6 - Notation a. Identify the values of and for the...Ch. 6 - In Exercises 610, assume that women have diastolic...Ch. 6 - In Exercises 610, assume that women have diastolic...Ch. 6 - In Exercises 610, assume that women have diastolic...Ch. 6 - In Exercises 610, assume that women have diastolic...Ch. 6 - In Exercises 610, assume that women have diastolic...Ch. 6 - Bone Density Test A bone mineral density test is...Ch. 6 - Biometric Security In designing a security system...Ch. 6 - Biometric Security Standing eye heights of men are...Ch. 6 - Sampling Distributions Scores on the Gilliam...Ch. 6 - Unbiased Estimators a. What is an unbiased...Ch. 6 - Disney Monorail The Mark VI monorail used at...Ch. 6 - Disney Monorail Consider the same Mark VI monorail...Ch. 6 - Assessing Normality Listed below are the recent...Ch. 6 - Hybridization Experiment In one of Mendels...Ch. 6 - Tall Clubs The social organization Tall Clubs...Ch. 6 - In Exercises 13, use the following recent annual...Ch. 6 - In Exercises 13, use the following recent annual...Ch. 6 - In Exercises 13, use the following recent annual...Ch. 6 - Blue Eyes Assume that 35% of us have blue eyes...Ch. 6 - Foot Lengths of Women Assume that foot lengths of...Ch. 6 - Assessing Normality It is often necessary to...
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