Citi Bike is a privately owned public bicycle sharing system in New York City that has become increasingly more popular in thepast few years. Citi Bike is designed to provide an alternative version of public transportation. Trips taken on daily or 3-daypasses are limited to 30 minutes before extra fees are charged.The following data indicate the trip times in minutes for a single Citi Bike in a daily period.(a) Create a stem-and-leaf plot for the data. (Enter numbers from smallest to largest separated by spaces. Enter NONE forstems with no values.)12stems: onesleaves: tenths1213 12.3 minutes13Stem Leaves1415161718192021222318.22416.7 16.2 18.2 12.3 20.1 25.5 19.0 19.4 16.92525.2 23.8 22.2 25.4 21.3 26.2 18.6 25.9 26.0 24.926(b) Which trip time (in minutes) could be considered a possible outlier in the data?min

The data on trip times (in minutes) of a single Citi Bike is provided as follows:18.2, 16.7, 16.2,…

Answered: Citi Bike is a privately owned public…

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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It is generally believed that there is a relationship between a college’s acceptance rate and its graduation rate. I wanted to know how strong this relationship is within the top universities in the country so I collected the graduation rate and acceptance rate data of a randomly selected sample of universities from all the top U.S. universities (with an acceptance rate at or below 30%). The data set is in Tab Q2 of the Excel data file. a.) Create a scatter plot between the two variables using Excel. Paste the plot here and format it into an APA-styled “figure” (see Assignment Guides for APA format).Be sure to submit the Excel file that you used to create the scatter plot. b) Calculate the mean and standard deviation for the two variables separately. c) Calculate the Z scores for all the scores of the two variables, separately.Tips: It may help to prevent error and to increase clarity if the process and/or the answers (z scores) are listed in a table format. d) Calculate…
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4.3) •VA report from Texas Transportation Institute (Texas A&M University System 2005) on Congestion Re- duction Strategies looked into the extra travel time (due to traffic congestion) for commute travel per traveler per year in hours for different urban areas. Below are the data for urban areas that had a population of over 3 million for the year 2002. Extra Hours per Traveler per Year Urban Area Los Angeles San Francisco 98 75 Washington DC Atlanta 66 64 Houston 65 Dallas, Fort Worth Chicago Detroit 61 55 54 Miami 48 Boston 53 New York 50 Phoenix 49 Philadelphia 40 4. Compute the mean and median values for extra travel hours. Based on the values of the mean and median, is the distribution of extra travel hours likely to be approximately symmetric, positively skewed, or negatively skewed?
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A back-to-back stem-and-leaf plot compares two data sets by using the same stems for each data set. Leaves for the first data set are on one side while leaves for the second data set are on the other side. The back-to-back stem- and-leaf plot available below shows the salaries (in thousands) of all lawyers at two small law firms. Complete parts (a) and (b) below. Click the icon to view the back-to-back stem-and-leaf plot. (a) What are the lowest and highest salaries at Law Firm A? at Law Firm B? How many lawyers are in each firm? At Law Firm A the lowest salary was $ At Law Firm B the lowest salary was $ and the highest salary was $ and the highest salary was $

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