MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
expand_more
expand_more
format_list_bulleted
Question
Data on the gasoline tax per gallon (in cents) as of a certain date for the 50 U.S. states and the District of Columbia are shown below.
State | Gasoline Tax per Gallon |
State | Gasoline Tax per Gallon |
---|---|---|---|
Alabama | 19.1 | Missouri | 17.2 |
Alaska | 9.1 | Montana | 27.7 |
Arizona | 19.1 | Nebraska | 27.8 |
Arkansas | 21.7 | Nevada | 23.7 |
California | 37.1 | New Hampshire | 23.9 |
Colorado | 23.4 | New Jersey | 14.5 |
Connecticut | 25.1 | New Mexico | 19.0 |
Delaware | 22.9 | New York | 33.9 |
District of Columbia |
23.4 | North Carolina | 35.4 |
North Dakota | 23.1 | ||
Florida | 30.7 | Ohio | 28.1 |
Georgia | 26.6 | Oklahoma | 17.1 |
Hawaii | 18.4 | Oregon | 30.1 |
Idaho | 33.1 | Pennsylvania | 51.3 |
Illinois | 33.0 | Rhode Island | 34.0 |
Indiana | 28.9 | South Carolina | 16.9 |
Iowa | 31.9 | South Dakota | 30.1 |
Kansas | 24.9 | Tennessee | 21.3 |
Kentucky | 25.9 | Texas | 20.1 |
Louisiana | 21.0 | Utah | 30.0 |
Maine | 31.5 | Vermont | 30.6 |
Maryland | 32.7 | Virginia | 16.9 |
Massachusetts | 26.6 | Washington | 44.5 |
Michigan | 31.0 | West Virginia | 33.3 |
Minnesota | 30.5 | Wisconsin | 33.0 |
Mississippi | 18.3 | Wyoming | 24.1 |
(a)
The smallest value in the data set is 9.1 (Alaska) and the largest value is 51.3 (Pennsylvania). Are these values outliers?
Pennsylvania is an outlier, but Alaska is not.Alaska and Pennsylvania are both outliers. Alaska is an outlier, but Pennsylvania is not.Neither Alaska nor Pennsylvania are outliers.
How do you know if they are outliers?
To be an outlier, an observation has to be greater than or less than .
(b)
Construct a boxplot of the data set.
The box-and-whisker plot has a vertical axis numbered from 0 to 60. The box-and-whisker is also vertical. The bottom whisker is approximately 14.5, the bottom edge of the box is approximately 24, the line inside the box is approximately 28.1, the top edge of the box is approximately 33.5, and the top whisker is approximately 44.5. There are 2 outliers located at 9.1 and 51.3.
The box-and-whisker plot has a vertical axis numbered from 0 to 60. The box-and-whisker is also vertical. The bottom whisker is approximately 9.1, the bottom edge of the box is approximately 16, the line inside the box is approximately 26.6, the top edge of the box is approximately 36.5, and the top whisker is approximately 51.3.
The box-and-whisker plot has a vertical axis numbered from 0 to 60. The box-and-whisker is also vertical. The bottom whisker is approximately 9.1, the bottom edge of the box is approximately 21, the line inside the box is approximately 26.6, the top edge of the box is approximately 31.5, and the top whisker is approximately 44.5. There is one outlier located at 51.3.
The box-and-whisker plot has a vertical axis numbered from 0 to 60. The box-and-whisker is also vertical. The bottom whisker is approximately 14.5, the bottom edge of the box is approximately 26, the line inside the box is approximately 31.6, the top edge of the box is approximately 36.5, and the top whisker is approximately 51.3. There is one outlier located at 9.1.
Comment on the interesting features of the plot. (Round numerical answers to the nearest cent.)
The boxplot shows that a typical gasoline tax is around cents per gallon, that the middle 50% of gasoline taxes lie between 21 and cents per gallon, and that the distribution is . There outlier(s) in the distribution.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 5 steps with 3 images
Knowledge Booster
Similar questions
- Below are the 2021 divorce rates for a set of south and western states. Please read the instructions carefully and provide your answers. Divorce Rate State per 1,000 Population Arizona 2.7 Utah 3.3 Wyoming 3.7 Nevada 4.2 3.0 Colorado IMPORTANT. In order for me to grade your test, you will need to: 1. Round to the nearest hundredth (i.e., the second decimal place). 2. Remember to compute and interpret all statistics. A sentence or two with the correct information and units will suffice. NUMBER YOUR ANSWERS AS FOLLOWS: 1. Compute and give an interpretation of the IQR for this data. 2. Compute and give an interpretation of the STANDARD DEVIATION for this data. 3. Which is the best measure of variability for this data and why? Explain in your own words.arrow_forward13.) Find the percent increase or decrease in the populations from 1990 to 2000 for each state. State Population 1990 Population 2000 % Increase or Decrease 43,913 72,543 168,244 A 29,081 49,016 121,913 B C 14.) Did a population paradox occur? Explain your answer. Write your response below:arrow_forward* 00 ea 3, 个 6. 4. 7. 4, 0 b Cab 2. 5. 6 $ #3 & esc dy 2021 McGraw Hill LLC. All Righ Check 6.5-7.5 9. 5.5-6.5 4.5-5.5 3.5-4.5 2.5-3.5 3. Class limits Class boundaries Frequency Send data to Excel 3. 3. 4. 5. 8. 4. 3. 8. 4. 4. 8. 8. Ages of Dogs The ages of 20 dogs in a pet shelter are shown. Construct a frequency distribution using 6 classes.arrow_forward
- The minimum wage in the 13 states shown in the following table were in effect as of January 2016.† State AK AR CA CT HI MD MA MI NE NY RI VT WV MinimumWage ($/hr) 9.75 8.00 10.00 9.60 8.50 8.75 10.00 8.50 9.00 9.00 9.60 9.60 8.75 Find the mean, median, and mode of the minimum wages in these 13 states. (If necessary, round your answers to two decimal places.) mean:$___ per hour median:$___ per hour mode:$___ per hourarrow_forwardDuring 2001, the Campbell Soup Foundation provided the following amounts in grants: Camden, N.J., $1,336,700; plant communities, $341,500; Dollars for Doers, $179,600; other projects, $64,100. Source: The Campbell Soup Foundation, 2002 Annual Report, p. 16. Construct a pie chart to summarize these contributions. Construct a bar chart to summarize these contributions. Why is it appropriate to construct a bar chart for these data instead of a histogram?arrow_forwardWhich of the following statements is Incorrect? O A. Ordinal data may be described as qualitative. O B. A categorical variable may produce ordinal data. O C. Nominal data may be described as quantitative. O D. A discrete numerical variable may produce ratio scale data. AGEarrow_forward
- 1. The total number of Corona cases in the US, please keep in mind it is a running total. Courtesy of worldometers.info Date in 2020 Feb. 15 Day ( Number of Corona Cases (C) 1 15 Feb. 26 12 68 Mar. 8 23 541 Mar. 19 34 14,896 171,655 517,100 Mar. 30 45 Apr10. Apr. 21 May 2 May 13 May 24 June 4 56 67 835,559 1,170,301 1,443,627 78 89 100 1,704,112 1,942,737 111 June 15 122 2,187,774 June 26 133 July 7 July 18 2,556,718 3,109,759 144 155 3,849,089 July 29 Aug. 9 Aug. 20 Aug. 31 166 4,588,252 177 5,228,738 5,771,205 188 199 6,239,373 Sept. 11 Sept. 22 210 6,673,451 221 7,109,730 a. Let C be the total number of Corona Virus cases in the United States by the end of the r days since Feruary 14, 2020. (Let r = 0 represent Feb. 15, 2020.) Create a scatter plot of the data. Take up the entire piece of graph paper. Make sure to label the axes, and title your graph. Does it look linear? Exponential, Quadratic? c. Use the calculator to find the regression equation for this data. Express the…arrow_forward10 see picturesarrow_forwardfind the pie chartarrow_forward
- Please send me the question in 20 minutes it's very urgent plzarrow_forwardI only need Part D.arrow_forwardSuppose a survey question asks students, "Is your favorite baseball team the Oakland A's, the Los Angeles Dodgers, the San Diego Padres, the San Francisco Giants, or Other?" What scale of measurement is being used? A. Nominal B. Interval C. Ratio D. Ordinalarrow_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 IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics 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:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction 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