8% had no opinion?a spe-8. On-Time Performance by Airlines According to theBureau of Transportation Statistics, on-time performanceby the airlines is described as follows:REuse theAction% of Time70.8On timeNational Aviation System delayAircraft arriving lateOther (because of weatherand other conditions)8.2od.9.012.020.Records of 200 randomly selected flights for a majorairline company showed that 125 planes were on time;40 were delayed because of weather, 10 because of aNational Aviation System delay, and the rest because ofarriving late. At a = 0.05, do these results differ fromthe government's statistics?ifes. Aent.Source: www.transtats.bts.gove for9. Genetically Modified Food An ABC News poll

Answered: 8% had no opinion? a spe- 8. On-Time…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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To determine if patrons are satisfied with performance quality, a theater surveys patrons at an evening performance by placing a paper survey inside their programs. All patrons receive a program as they enter the theater. Completed surveys are placed in boxes at the theater exits. On the evening of the survey, 500 patrons saw the performance. One hundred surveys were completed, and 70% of these surveys indicated dissatisfaction with the performance. Should the theater conclude that patrons were dissatisfied with performance quality? Explain. Question content area bottom Part 1 Should the theater conclude that patrons were dissatisfied with performance quality? Select all that apply. A. No, because there was sampling bias as those who had strong feelings about the performance (positive or negative) may be more likely to return the survey. B. No, because there was measurement bias as patrons will give a response that is more favorable than the…
The Bureau of Labor Statistics provides the annual average unemployment rate (civilian workforce 16 years and older) in the United States. This information is given in the following table. Year Unemployment Rate 2006 4.6% 2007 4.6% 2008 5.8% 2009 9.3% 2010 9.6% 2011 8.9% (a) Which of the following explanations is the BEST reason for NOT using a pie chart to represent this data? (Choose only one.) Bar charts are always better representations of data. There are too many years for a pie chart to useful. The numbers do not add to 100%. Each of the percentages comes from a different base. That is, each of the percentages are not part of the same whole. (b) Think about the similarities and differences of pie charts, bar graphs, and histograms. Select ALL of the following statements that are TRUE. Pie charts and bar graphs are used to compare variables while histograms are used to examine the distribution of data. Pie charts, bar graphs, and histograms can…
What is the coefficient of determination for Data Set B? The coefficient of determination for Data Set B is %. (Type an integer or decimal rounded to the nearest tenth as needed.) Full Data Set: 0 Data Set A Data Set B Data Set C y 8.9 y y 3.6 3.1 8.9 2.8 8.9 8.3 15.0 9.4 15.0 8.1 15.0 0.5 4.8 1.2 4.8 3.0 4.8 1.4 6.0 1.0 6.0 8.3 6.0 8.2 14.9 9.0 14.9 8.2 14.9 5.9 11.9 5.0 11.9 1.4 11.9 4.3 9.8 3.4 9.8 1.0 9.8 8.3 15.0 7.4 15.0 7.9 15.0 0.3 4.7 0.1 4.7 5.9 4.7 6.8 13.0 7.5 13.0 5.0 13.0 (This is a reading assessment question. Be certain of your answer because you only get one attempt on this question.)
2. If a value represents the 65th percentile, this means that: A.there is a 65% chance that this value is correct.B.this value will occur 65% of the time.C.65% of all values are less than or equal to the value.D.65% of all values are greater than the value.
What is the coefficient of determination for Data Set B? The coefficient of determination for Data Set B is %. Full Data Set: (Type an integer or decimal rounded to the nearest tenth as needed.) Data Set A Data Set B Data Set C y X y 8.9 3.6 8.9 3.1 8.9 2.8 8.3 15.0 9.4 15.0 8.1 15.0 0.5 4.8 1.2 4.8 3.0 4.8 14 6.0 10 6.0 8.3 6.0 8.2 14.9 9.0 14.9 8.2 14.9 11.9 9.8 15.0 5.9 11.9 5.0 11.9 1.4 4.3 9.8 3.4 9.8 1.0 8.3 15.0 7.4 0.1 7.5 15.0 7.9 03 4.7 4.7 5.9 4.7 6.8 13.0 13.0 5.0 13.0 (This is a reading assessment question. Be certain of your answer because you only get one attempt on this question.)
The data set shows the GDP per people in 24 countries, along with the proportion of person that have a linkedin social media account. A. the covariance is ___ percentage dollars. be careful of the units. round to the nearest integer. B. r= ___ c. Choose the correct answer below. A. There is no clear relationship between the GDP and LinkedIn accounts. B. There is a strong positive relationship between the GDP and LinkedIn accounts. C. There is a weak positive relationship between the GDP and LinkedIn accounts. D. There is a strong negative relationship between the GDP and LinkedIn accounts. GDP (PPP) Social Media Usage (%) 6,905 89 17,863 87 5,114 86 9,989 86 6,121 83 6,593 83 13,899 81 4,013 83 16,146 75 4,696 79 16,470 76 19,857 72 18,155 71 3,501 74 19,526 75 8,007 76 4,033 73 13,651 69 16,990 68 6,642 70 6,447 70 6,434 68 13,052 64 10,874 47
Which region has the largest population in this sample? What proportion live in that region? Which region/province has the least people? What is the percentage? How many in the sample were from the Prairies?
Review this chart. Identify what type of figure/chart is presented and briefly explain what each chart is reporting.
The increasing annual cost (including tuition, room, board, books and fees) to attend college) to attend college has been widely discussed in many public including Money magazine. The following random samples show the annual cost of attending private and public colleges. Data are in thousands of dollars. Click on the datafile logo to reference the data. Round degrees of freedom to the preceding whole number. DATA file Private Colleges 52.8 30.6 20.3 43.2 Public Colleges 45.8 22.8 22.0 25.8 45.0 33.3 37.8 50.5 28.2 15.6 18.5 44.0 25.6 42.0 a. Compute the sample mean and sample standard deviation for private and public colleges. Round your answers to two decimal places. F1 = 24.1 28.5 21.8 14.4 F2 = S₁ = S₂ b. What is the point estimate of the difference between the two population means? Round your answer to one decimal place. Interpret this value in terms of the annual cost of attending private and public colleges. $ c. Develop a 95% confidence interval of the difference between the…
The second slide is the first part of the question and the first slide is the second part of the question
Using this data, how would you find a 95% prediction interval for the number of programs in year 11?
What is the mode? Answer as an INTEGER. If necessary, round to the nearest integer. If it is not applicable or not available, type “na” instead.

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