Elementary Statistics
12th Edition
ISBN: 9780321837936
Author: Mario F. Triola
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 5.4, Problem 14BSC
a.
To determine
The mean and standard deviation for the number of correct responses in the group of 280 trials.
b.
To determine
To find: Whether 123 times in the 280 trials is unusually low or high number of correct responses.
To suggest: The result about the ability of touch from the obtained results.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A common design requirement is that an environment must fit the range of people who fall between the 5th percentile for
women and the 95h percentile for men. In designing an assembly work table, the sitting knee height must be considered,
which is the distance from the bottom of the feet to the top of the knee. Males have sitting knee heights that are normally
distributed with a mean of 21.2 in. and a standard deviation of 1.1 in. Females have sitting knee heights that are normally
distributed with a mean of 19.7 in. and a standard deviation of 1.0 in. Use this information to answer the following questions.
What is the minimum table clearance required to satisfy the requirement of fitting 95% of men?
23.0 in. (Round to one decimal place as needed.)
Determine if the following statement is true or false. If there is clearance for 95% of males, there will certainly be clearance
for all women in the bottom 5%.
A. The statement is false because the 95th percentile for men is greater than…
In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among
350
trials, the touch therapists were correct
165
times. Complete parts (a) through (d).
In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among
354
trials, the touch therapists were correct
170
times. Complete parts (a) through (d).
a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses?
nothing
(Type an integer or a decimal. Do not round.)
b. Using Emily's sample results, what is the best point estimate of the therapists' success rate?
nothing
(Round to three decimal places as needed.)
c. Using Emily's sample results,
construct
a
95%
confidence interval estimate of the proportion of correct…
Chapter 5 Solutions
Elementary Statistics
Ch. 5.2 - Random Variable Table 5-7 lists probabilities for...Ch. 5.2 - Discrete or Continuous? Is the random variable...Ch. 5.2 - Probability Distribution Does Table 5-7 describe a...Ch. 5.2 - Unusual For 200 births, the probability of exactly...Ch. 5.2 - Identifying Discrete and Continuous Random...Ch. 5.2 - Prob. 6BSCCh. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Identifying Probability Distributions. In...
Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Happiness In a survey sponsored by Coca-Cola,...Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Genetics. In Exercises 15-18, refer to the...Ch. 5.2 - Genetics. In Exercises 15-18, refer to the...Ch. 5.2 - Genetics. In Exercises 15-18, refer to the...Ch. 5.2 - Genetics. In Exercises 15-18, refer to the...Ch. 5.2 - Car Failures. In Exercises 19-22, refer to the...Ch. 5.2 - Car Failures. In Exercises 19-22, refer to the...Ch. 5.2 - Car Failures. In Exercises 19-22, refer to the...Ch. 5.2 - Prob. 22BSCCh. 5.2 - Expected Value for the Texas Pick 3 Game In the...Ch. 5.2 - Expected Value in Maines Pick 4 Game In Maines...Ch. 5.2 - Prob. 25BBCh. 5.2 - Expected Value for Deal or No Deal The television...Ch. 5.3 - Calculating Probabilities Based on a Saint Index...Ch. 5.3 - Consistent Notation If we use the binomial...Ch. 5.3 - Prob. 3BSCCh. 5.3 - Notation of 0+ Using the same survey from Exercise...Ch. 5.3 - Identifying Binomial Distributions. In Exercises...Ch. 5.3 - Identifying Binomial Distributions. In Exercises...Ch. 5.3 - Veggie Survey In an Idaho Potato Commission survey...Ch. 5.3 - Veggie Survey In an Idaho Potato Commission survey...Ch. 5.3 - Surveying Senators The current Senate consists of...Ch. 5.3 - Identifying Binomial Distributions. In Exercises...Ch. 5.3 - Prob. 11BSCCh. 5.3 - Prob. 12BSCCh. 5.3 - Binomial Probability Formula. In Exercises 13 and...Ch. 5.3 - Prob. 14BSCCh. 5.3 - Using the Binomial Probability Table. In Exercises...Ch. 5.3 - Prob. 16BSCCh. 5.3 - Using the Binomial Probability Table. In Exercises...Ch. 5.3 - Prob. 18BSCCh. 5.3 - Prob. 19BSCCh. 5.3 - Using the Binomial Probability Table. In Exercises...Ch. 5.3 - Prob. 21BSCCh. 5.3 - Prob. 22BSCCh. 5.3 - Prob. 23BSCCh. 5.3 - Prob. 24BSCCh. 5.3 - Using Computer Results. In Exercises 2528, refer...Ch. 5.3 - Prob. 26BSCCh. 5.3 - Prob. 27BSCCh. 5.3 - Using Computer Results. In Exercises 2528, refer...Ch. 5.3 - See You Later Based on a Harris Interactive poll,...Ch. 5.3 - Live TV Based on a Comcast survey, there is a 0.8...Ch. 5.3 - Too Young to Tat Based on a Harris poll, among...Ch. 5.3 - Tainted Currency Based on the American Chemical...Ch. 5.3 - Prob. 33BSCCh. 5.3 - Prob. 34BSCCh. 5.3 - On-Time Flights The U.S. Department of...Ch. 5.3 - Prob. 36BSCCh. 5.3 - Nielsen Rating CBS televised a recent Super Bowl...Ch. 5.3 - Overbooking Flights When someone buys a ticket for...Ch. 5.3 - XSORT Method of Gender Selection When testing a...Ch. 5.3 - Prob. 40BSCCh. 5.3 - Prob. 41BSCCh. 5.3 - Prob. 42BSCCh. 5.3 - Acceptance Sampling. Exercises 35 and 36 involve...Ch. 5.3 - Prob. 44BSCCh. 5.3 - Prob. 46BBCh. 5.3 - Prob. 47BBCh. 5.4 - Prob. 1BSCCh. 5.4 - Prob. 2BSCCh. 5.4 - Prob. 3BSCCh. 5.4 - Prob. 4BSCCh. 5.4 - Finding , , and Unusual Values. In Exercises 58,...Ch. 5.4 - Prob. 6BSCCh. 5.4 - Prob. 7BSCCh. 5.4 - Prob. 8BSCCh. 5.4 - Prob. 9BSCCh. 5.4 - Prob. 10BSCCh. 5.4 - Are 20% of MM Candies Orange? Mars, Inc. claims...Ch. 5.4 - Are 14% of MM Candies Yellow? Mars, Inc. claims...Ch. 5.4 - Cell Phones and Brain Cancer In a study of 420,095...Ch. 5.4 - Prob. 14BSCCh. 5.4 - Prob. 15BSCCh. 5.4 - Prob. 16BSCCh. 5.4 - Prob. 17BSCCh. 5.4 - Prob. 18BSCCh. 5.4 - Born on the 4th of July For the following...Ch. 5.4 - Prob. 20BSCCh. 5.4 - Prob. 21BBCh. 5.4 - Prob. 23BBCh. 5.5 - Prob. 1BSCCh. 5.5 - Prob. 2BSCCh. 5.5 - Poission Approximation to Binomial Assume that we...Ch. 5.5 - Prob. 4BSCCh. 5.5 - Aircraft Accidents. In Exercises 58, assume that...Ch. 5.5 - Aircraft Accidents. In Exercises 58, assume that...Ch. 5.5 - Aircraft Accidents. In Exercises 58, assume that...Ch. 5.5 - Aircraft Accidents. In Exercises 58, assume that...Ch. 5.5 - In Exercises 916, use the Poisson distribution to...Ch. 5.5 - Prob. 10BSCCh. 5.5 - Prob. 11BSCCh. 5.5 - Deaths from Horse Kicks A classical example of the...Ch. 5.5 - World War II Bombs In Exercise 1 Notation we noted...Ch. 5.5 - Prob. 14BSCCh. 5.5 - Chocolate Chip Cookies In the production of...Ch. 5.5 - Chocolate Chip Cookies Consider an individual...Ch. 5.5 - Poisson Approximation to Binomial Distribution An...Ch. 5 - Is a probability distribution defined if the only...Ch. 5 - There are 100 questions from an SAT test, and they...Ch. 5 - Using the same SAT questions described in Exercise...Ch. 5 - Prob. 4CQQCh. 5 - If boys and girls are equally likely, groups of400...Ch. 5 - In Exercises 610, use the following: Five American...Ch. 5 - x p(x) 0 0+ 1 0.006 2 0.051 3 0.205 4 0.409 5...Ch. 5 - In Exercises 610, use the following: Five American...Ch. 5 - In Exercises 610, use the following: Five American...Ch. 5 - In Exercises 610, use the following: Five American...Ch. 5 - In Exercises 14, assume that 40% of the population...Ch. 5 - Prob. 2RECh. 5 - Prob. 3RECh. 5 - Brown Eyes When randomly selecting 600 people, the...Ch. 5 - In Exercises 5 and 6, refer to the table in die...Ch. 5 - In Exercises 5 and 6, refer to the table in die...Ch. 5 - Prob. 7RECh. 5 - Prob. 8RECh. 5 - Expected Value for a Magazine Sweepstakes Readers...Ch. 5 - Prob. 10RECh. 5 - Please be aware that some of the following...Ch. 5 - Ohio Pick 4 In Ohios Pick 4 game, you pay 1 to...Ch. 5 - Tennis Challenge In the last U.S. Open tennis...Ch. 5 - Prob. 4CRECh. 5 - Random Digits The digits 0, 1, 2,3,4, 5,6,7, 8,...Ch. 5 - Prob. 6CRECh. 5 - FROM DATA TO DECISION Critical Thinking: Did...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 287 trials, the touch therapists were correct 130 times. Complete parts (a) through (d). Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses?arrow_forwardIn a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 304 trials, the touch therapists were correct 140 times. Complete parts (a) through (d). a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses?arrow_forwardIn a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 326 trials, the touch therapists were correct 152 times. Complete parts (a) through (d). A. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses? _______ B.Using Emily's sample results, what is the best point estimate of the therapists' success rate? _____ C. Using Emily's sample results, construct a 90% confidence interval estimate of the proportion of correct responses made by touch therapists. ___<p<___ D. What do the results suggest about the ability of…arrow_forward
- In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 325 trials, the touch therapists were correct 155 times. Complete parts (a) through (d) a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses? (Type an integer or a decimal. Do not round.)arrow_forwardIn a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 365 trials, the touch therapists were correct 177 times. Complete parts (a) through (d). .... a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses? (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 90% confidence interval estimate of the proportion of correct responses made by touch therapists.…arrow_forwardIn a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 303 trials, the touch therapists were correct 144 times. Complete parts (a) through (d). a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses? b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? c. Using Emily's sample results, construct a 90% confidence interval estimate of the proportion of correct responses made by touch therapists. d. What do the results suggest about the ability of touch therapists to select the…arrow_forward
- In a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if the could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 314 trials, the touch therapists were correct 149 times. Complete parts (a) through (d). a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct response would be expected if the touch therapists made random guesses? (Type an integer or a decimal. Do not round.)arrow_forwardIn a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 312 trials, the touch therapists were correct 151 times. Complete parts (a) through (d). a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses? (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 90% confidence interval estimate of the proportion of correct responses made by touch therapists.arrow_forwardIn a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 331 trials, the touch therapists were correct 158 times. Complete parts (a) through (d). a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses? (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of correct responses made by touch therapists.arrow_forwardIn a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 311 trials, the touch therapists were correct 143 times. Complete parts (a) through (d). a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses? 0.5 (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? 0.46 (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of correct responses made by touch therapists. Oarrow_forwardIn a science fair project, Emily conducted an experiment in which she tested professional touch Ktherapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 357 trials, the touch therapists were correct 169 times. Complete parts (a) through (d). S View an example Get more help. 4- & 87 U 0.5 (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? 0.473 (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 90% confidence interval estimate of the proportion of correct responses made by touch therapists. Farrow_forwardIn a science fair project, Emily conducted an experiment in which she tested professional touch therapists to see if they could sense her energy field. She flipped a coin to select either her right hand or her left hand, and then she asked the therapists to identify the selected hand by placing their hand just under Emily's hand without seeing it and without touching it. Among 310 trials, the touch therapists were correct 149 times. Complete parts (a) through (d). a. Given that Emily used a coin toss to select either her right hand or her left hand, what proportion of correct responses would be expected if the touch therapists made random guesses? (Type an integer or a decimal. Do not round.) b. Using Emily's sample results, what is the best point estimate of the therapists' success rate? (Round to three decimal places as needed.) c. Using Emily's sample results, construct a 95% confidence interval estimate of the proportion of correct responses made by touch therapists. |arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_iosRecommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hillwhat is Research Design, Research Design Types, and Research Design Methods; Author: Educational Hub;https://www.youtube.com/watch?v=LpmGSioXxdo;License: Standard YouTube License, CC-BY