Statistics (13th Edition)
13th Edition
ISBN: 9780134080215
Author: James T. McClave, Terry T Sincich
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 11.1, Problem 1UP
To determine
Explain the reason for preferring a probabilistic model than a deterministic model.
Give examples for the two types of models that are appropriate.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
4.96 The breaking strengths for 1-foot-square samples of a particular synthetic fabric are approximately normally distributed with a mean of 2,250 pounds per square inch (psi) and a standard deviation of 10.2 psi. Find the probability of selecting a 1-foot-square sample of material at random that on testing would have a breaking strength in excess of 2,265 psi.4.97 Refer to Exercise 4.96. Suppose that a new synthetic fabric has been developed that may have a different mean breaking strength. A random sample of 15 1-foot sections is obtained, and each section is tested for breaking strength. If we assume that the population standard deviation for the new fabric is identical to that for the old fabric, describe the sampling distribution forybased on random samples of 15 1-foot sections of new fabric
Une Entreprise œuvrant dans le domaine du multividéo donne l'opportunité à ses
programmeurs-analystes d'évaluer la performance des cadres supérieurs.
Voici les résultats obtenues (sur une échelle de 10 à 50) où 50 représentent une
excellente performance. 10 programmeurs furent sélectionnés au hazard pour
évaluer deux cadres. Un rapport Excel est également fourni.
Programmeurs
Cadre A Cadre B
1
34
36
2
32
34
3
18
19
33
38
19
21
21
23
7
35
34
8
20
20
9
34
34
10
36
34
Test d'égalité des espérances: observations pairées
A television news channel samples 25 gas stations from its local area and uses the results to estimate the average gas price for the state. What’s wrong with its margin of error?
Chapter 11 Solutions
Statistics (13th Edition)
Ch. 11.1 - Why do we generally prefer a probabilistic model...Ch. 11.1 - What is the difference between a dependent...Ch. 11.1 - What is the line of means?
Ch. 11.1 - If a straight-line probabilistic relationship...Ch. 11.1 - 11.1 In each case, graph the line that passes...Ch. 11.1 - Give the slope and y-intercept for each of the...Ch. 11.1 - Prob. 7LMCh. 11.1 - Prob. 8LMCh. 11.1 - Prob. 9LMCh. 11.1 - Give the slope and y-intercept for each of the...
Ch. 11.1 - Measuring the moon’s orbit. A handheld digital...Ch. 11.1 - Prob. 12ACBCh. 11.1 - Prob. 13ACBCh. 11.1 - Prob. 14ACBCh. 11.2 - In regression, what is an error of prediction?
Ch. 11.2 - Prob. 16UPCh. 11.2 - Prob. 17UPCh. 11.2 - The accompanying table is used to make the...Ch. 11.2 - 11.15 Refer to Exercise 11.14. After the least...Ch. 11.2 - Prob. 20LMCh. 11.2 - Consider the following pairs of...Ch. 11.2 - Applet Exercise 11.1
Use the applet Regression by...Ch. 11.2 - Prob. 22ACBCh. 11.2 - Prob. 23ACBCh. 11.2 - Prob. 24ACBCh. 11.2 - New method for blood typing. Refer to the...Ch. 11.2 - Mongolian desert ants. Refer to the Journal of...Ch. 11.2 - Prob. 27ACBCh. 11.2 - Repair and replacement costs of water pipes. Pipes...Ch. 11.2 - Prob. 29ACICh. 11.2 - FCAT scores and poverty. In the state of Florida,...Ch. 11.2 - Sound waves from a basketball. Refer to the...Ch. 11.2 - 11.26 Sweetness of orange juice. The quality of...Ch. 11.2 - Prob. 33ACICh. 11.2 - Prob. 34ACICh. 11.2 - Prob. 35ACACh. 11.2 -
11.27 Forecasting movie revenues with Twitter....Ch. 11.3 - What are the four assumptions made about the...Ch. 11.3 - Prob. 38UPCh. 11.3 - Prob. 39LMCh. 11.3 - Suppose you fit a least squares line to 12 data...Ch. 11.3 - Refer to Exercises 11.18 and 11.21 (p. 597)....Ch. 11.3 - Prob. 42ACBCh. 11.3 - Prob. 43ACBCh. 11.3 - Prob. 44ACBCh. 11.3 - Prob. 45ACBCh. 11.3 - Prob. 46ACBCh. 11.3 - Prob. 47ACBCh. 11.3 - Prob. 48ACICh. 11.3 - FCAT scores and poverty. Refer to the Journal of...Ch. 11.3 - Prob. 50ACICh. 11.3 - Ideal height of your mate. Refer to the Chance...Ch. 11.3 - Prob. 52ACACh. 11.4 - In the equation E(y) = β0 + β1x, what is the value...Ch. 11.4 - What conditions are required for valid inferences...Ch. 11.4 - How do you adjust the p-value obtained from a...Ch. 11.4 - Prob. 56UPCh. 11.4 - Construct both a 95% and a 90% confidence interval...Ch. 11.4 - Consider the following pairs of...Ch. 11.4 - Consider the following pairs of...Ch. 11.4 - Congress voting on women’s issues. The American...Ch. 11.4 - Estimating repair and replacement costs of water...Ch. 11.4 - Prob. 62ACBCh. 11.4 - Lobster fishing study. Refer to the Bulletin of...Ch. 11.4 - 11.56 Beauty and electoral success. Are good looks...Ch. 11.4 - 11 57 Ranking driving performance of professional...Ch. 11.4 - FCAT scores and poverty. Refer to the Journal of...Ch. 11.4 - Sweetness of orange juice. Refer to Exercise...Ch. 11.4 - Ideal height of your mate. Refer to the Chance...Ch. 11.4 - Forest fragmentation study. Refer to the...Ch. 11.4 - Effect of massage on boxers. Refer to the British...Ch. 11.4 - Eye anatomy of giraffes. Giraffes are believed to...Ch. 11.4 - Pain empathy and brain activity, Empathy refers to...Ch. 11.4 - Characterizing bone with fractal geometry. In...Ch. 11.4 - The “name game.” Refer to the Journal of...Ch. 11.4 - Does elevation affect hitting performance in...Ch. 11.4 - 11.62 Spreading rate of spilled liquid. Refer to...Ch. 11.5 - True or False. The correlation coefficient is a...Ch. 11.5 - Describe the slope of the least squares line if
r...Ch. 11.5 - Explain what each of the following sample...Ch. 11.5 - True or False. A value of the correlation...Ch. 11.5 - Construct a scatterplot for each data set. Then...Ch. 11.5 - Calculate r2 for the least squares line in...Ch. 11.5 - Calculate r2 for the least squares line in...Ch. 11.5 - Use the applet Correlation by Eye to explore the...Ch. 11.5 - 11.71 RateMyProfessors.com. A popular Web site...Ch. 11.5 - 11.72 Last name and acquisition timing. Refer to...Ch. 11.5 - Taste-testing scales. Refer to the Journal of Food...Ch. 11.5 - 11.69 Going for it on fourth-down in the NFL Each...Ch. 11.5 - Lobster fishing study. Refer to the Bulletin of...Ch. 11.5 - 80215-11.5-90ACB
Redshifts of quasi-stellar...Ch. 11.5 - 11.79 Evaluation of an imputation method for...Ch. 11.5 - Salary linked to height. Are short people...Ch. 11.5 - Prob. 93ACICh. 11.5 - Eye anatomy of giraffes. Refer to the African...Ch. 11.5 - Do nice guys finish first or last? Refer to the...Ch. 11.5 - The “name game.” Refer to the Journal of...Ch. 11.5 - Effect of massage on boxing. Refer to the British...Ch. 11.5 - Child labor in diamond mines. The role of child...Ch. 11.5 - Plants that grow on Swiss cliffs. Refer to the...Ch. 11.5 - Pain tolerance study. A study published in...Ch. 11.6 - Explain the difference between y and E(y) for a...Ch. 11.6 - True or False. For a given x. a confidence...Ch. 11.6 - True or False. The greater the deviation between x...Ch. 11.6 - For each of the following, decide whether the...Ch. 11.6 - 11.85 In fitting a least squares line to n = 10...Ch. 11.6 - Consider the following pairs of...Ch. 11.6 - Consider the following pairs of measurements.
For...Ch. 11.6 - Refer to Exercise 11.107.
Using no information...Ch. 11.6 - 11.86 In business, do nice guys finish first or...Ch. 11.6 - Measuring the moon’s orbit. Refer to the American...Ch. 11.6 - Mongolian desert ants. Refer to the Journal of...Ch. 11.6 - Ranking driving performance of professional...Ch. 11.6 - Sweetness of orange juice. Refer to the simple...Ch. 11.6 -
Removal nitrogen from toxic wastewater. Highly...Ch. 11.6 - Game performance of water polo players. Refer to...Ch. 11.6 - Sound waves from a basketball. Refer to the...Ch. 11.6 - Ideal height of your mate. Refer to the Chance...Ch. 11.6 - The “name game.” Refer to the Journal of...Ch. 11.6 - 11.93 Spreading rate of spilled liquid Refer to...Ch. 11.6 - Forecasting movie revenues with Twitter. Refer to...Ch. 11.6 - 11 96 Life tests of cutting tools Refer to the...Ch. 11.7 - Impact of dropping ping-pong balls. The impact of...Ch. 11.7 - Prob. 123ACICh. 11.7 - 11.100 An MBA’s work-life balance. The importance...Ch. 11.7 - Legal advertising—does it pay? To gain a...Ch. 11 - Prob. 126UPCh. 11 - Give the general form of a straight-line model for...Ch. 11 - Outline the five steps in a simple linear...Ch. 11 - True or False. In simple linear regression, about...Ch. 11 - 11.101 In fitting a least squares line ton= 15...Ch. 11 - 11.102 Consider the following sample...Ch. 11 - 11.103 Consider the following 10 data...Ch. 11 - Arsenic in soil. In Denver, Colorado,...Ch. 11 - Wind turbine blade stress. Mechanical engineers at...Ch. 11 - 11.110 Sports news on local TV broadcasts. The...Ch. 11 - Predicting sale prices of homes. Real-estate...Ch. 11 - Baseball balling averages versus wins. Is the...Ch. 11 - Prob. 138ACBCh. 11 - Prob. 139ACBCh. 11 - English as a second language reading ability. What...Ch. 11 - Prob. 141ACBCh. 11 - New method of estimating rainfall. Accurate...Ch. 11 - Prob. 143ACICh. 11 - Prob. 144ACICh. 11 - Mortality of predatory birds. Two species of...Ch. 11 - Prob. 146ACICh. 11 - Prob. 147ACICh. 11 - Dance/movement therapy. In cotherapy, two or more...Ch. 11 - Prob. 149ACICh. 11 - Snow geese feeding trial. Botanists at the...Ch. 11 - Prob. 151ACACh. 11 - Prob. 152ACACh. 11 - Prob. 153CTC
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
- You’re fed up with keeping Fido locked inside, so you conduct a mail survey to find out people’s opinions on the new dog barking ordinance in a certain city. Of the 10,000 people who receive surveys, 1,000 respond, and only 80 are in favor of it. You calculate the margin of error to be 1.2 percent. Explain why this reported margin of error is misleading.arrow_forwardYou find out that the dietary scale you use each day is off by a factor of 2 ounces (over — at least that’s what you say!). The margin of error for your scale was plus or minus 0.5 ounces before you found this out. What’s the margin of error now?arrow_forwardSuppose that Sue and Bill each make a confidence interval out of the same data set, but Sue wants a confidence level of 80 percent compared to Bill’s 90 percent. How do their margins of error compare?arrow_forward
- Suppose that you conduct a study twice, and the second time you use four times as many people as you did the first time. How does the change affect your margin of error? (Assume the other components remain constant.)arrow_forwardOut of a sample of 200 babysitters, 70 percent are girls, and 30 percent are guys. What’s the margin of error for the percentage of female babysitters? Assume 95 percent confidence.What’s the margin of error for the percentage of male babysitters? Assume 95 percent confidence.arrow_forwardYou sample 100 fish in Pond A at the fish hatchery and find that they average 5.5 inches with a standard deviation of 1 inch. Your sample of 100 fish from Pond B has the same mean, but the standard deviation is 2 inches. How do the margins of error compare? (Assume the confidence levels are the same.)arrow_forward
- A survey of 1,000 dental patients produces 450 people who floss their teeth adequately. What’s the margin of error for this result? Assume 90 percent confidence.arrow_forwardThe annual aggregate claim amount of an insurer follows a compound Poisson distribution with parameter 1,000. Individual claim amounts follow a Gamma distribution with shape parameter a = 750 and rate parameter λ = 0.25. 1. Generate 20,000 simulated aggregate claim values for the insurer, using a random number generator seed of 955.Display the first five simulated claim values in your answer script using the R function head(). 2. Plot the empirical density function of the simulated aggregate claim values from Question 1, setting the x-axis range from 2,600,000 to 3,300,000 and the y-axis range from 0 to 0.0000045. 3. Suggest a suitable distribution, including its parameters, that approximates the simulated aggregate claim values from Question 1. 4. Generate 20,000 values from your suggested distribution in Question 3 using a random number generator seed of 955. Use the R function head() to display the first five generated values in your answer script. 5. Plot the empirical density…arrow_forwardFind binomial probability if: x = 8, n = 10, p = 0.7 x= 3, n=5, p = 0.3 x = 4, n=7, p = 0.6 Quality Control: A factory produces light bulbs with a 2% defect rate. If a random sample of 20 bulbs is tested, what is the probability that exactly 2 bulbs are defective? (hint: p=2% or 0.02; x =2, n=20; use the same logic for the following problems) Marketing Campaign: A marketing company sends out 1,000 promotional emails. The probability of any email being opened is 0.15. What is the probability that exactly 150 emails will be opened? (hint: total emails or n=1000, x =150) Customer Satisfaction: A survey shows that 70% of customers are satisfied with a new product. Out of 10 randomly selected customers, what is the probability that at least 8 are satisfied? (hint: One of the keyword in this question is “at least 8”, it is not “exactly 8”, the correct formula for this should be = 1- (binom.dist(7, 10, 0.7, TRUE)). The part in the princess will give you the probability of seven and less than…arrow_forward
- please answer these questionsarrow_forwardSelon une économiste d’une société financière, les dépenses moyennes pour « meubles et appareils de maison » ont été moins importantes pour les ménages de la région de Montréal, que celles de la région de Québec. Un échantillon aléatoire de 14 ménages pour la région de Montréal et de 16 ménages pour la région Québec est tiré et donne les données suivantes, en ce qui a trait aux dépenses pour ce secteur d’activité économique. On suppose que les données de chaque population sont distribuées selon une loi normale. Nous sommes intéressé à connaitre si les variances des populations sont égales.a) Faites le test d’hypothèse sur deux variances approprié au seuil de signification de 1 %. Inclure les informations suivantes : i. Hypothèse / Identification des populationsii. Valeur(s) critique(s) de Fiii. Règle de décisioniv. Valeur du rapport Fv. Décision et conclusion b) A partir des résultats obtenus en a), est-ce que l’hypothèse d’égalité des variances pour cette…arrow_forwardAccording to an economist from a financial company, the average expenditures on "furniture and household appliances" have been lower for households in the Montreal area than those in the Quebec region. A random sample of 14 households from the Montreal region and 16 households from the Quebec region was taken, providing the following data regarding expenditures in this economic sector. It is assumed that the data from each population are distributed normally. We are interested in knowing if the variances of the populations are equal. a) Perform the appropriate hypothesis test on two variances at a significance level of 1%. Include the following information: i. Hypothesis / Identification of populations ii. Critical F-value(s) iii. Decision rule iv. F-ratio value v. Decision and conclusion b) Based on the results obtained in a), is the hypothesis of equal variances for this socio-economic characteristic measured in these two populations upheld? c) Based on the results obtained in a),…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSON
The Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. Freeman
Introduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman
Solve ANY Optimization Problem in 5 Steps w/ Examples. What are they and How do you solve them?; Author: Ace Tutors;https://www.youtube.com/watch?v=BfOSKc_sncg;License: Standard YouTube License, CC-BY
Types of solution in LPP|Basic|Multiple solution|Unbounded|Infeasible|GTU|Special case of LP problem; Author: Mechanical Engineering Management;https://www.youtube.com/watch?v=F-D2WICq8Sk;License: Standard YouTube License, CC-BY
Optimization Problems in Calculus; Author: Professor Dave Explains;https://www.youtube.com/watch?v=q1U6AmIa_uQ;License: Standard YouTube License, CC-BY
Introduction to Optimization; Author: Math with Dr. Claire;https://www.youtube.com/watch?v=YLzgYm2tN8E;License: Standard YouTube License, CC-BY