A vending machine company operates coffee vending machines in office buildings. Thecompany wants to study the relationship between the number of cups of coffee sold perday and the number of persons working in each building. Data were collected werecollected by the company and presented below.a. Why do you think the company wants to collect and study thedata?Number ofNumber ofCups ofpersonsworking at Coffee SoldLocationb. Describe the correlation between the given variables. Use scatterplot.1520c. Using regression analysis, write the equation used for predictingvalues of y.1015d. Predict the values of y if the number of workers at location are thefollowing:x= 211620x = 11x = 351825e. As part of decision-making body of the vending machine company,what could be the possible inference/recommendation for theoperation of vending machine in the location?2230A vending machine company operates coffee vending machines in office buildings. Thecompany wants to study the relationship between the number of cups of coffee sold per dayand the number of persons working in each building. Data were collected were collected bythe company and presented below.Number of Number ofCups ofCoffee Soldf. Make a copy of the scatter diagram in this item.Draw the line that best fits in the scatter diagram using thepersonsworking atLocationregression equation.8. Locate the (X,). Describe its location in relation to the otherplotted data.15201015h. Give a practical interpretation of the values of a and b.201. Show that the regression equation can be expressed in the form:(y - y) = b(x - )1618252230

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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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Given the following two sets of data, draw a stem and leaf plot.A: 12, 22, 22, 24, 34, 31, 26, 35, 27, 39, 49, 10B: 45, 36, 23, 16, 37, 28, 18, 13, 10, 23, 30, 31
I. Background The Food and Drug Administration (FDA) tries to find out whether there is a relation between the number of years people smoked and the percentage of lung damage. FDA asks you for your help to find it out. You interviewed twenty people who have smoked and obtained the following data. II. Technical report: a) Draw a scatter plot. b) Based on the scatter plot, explain whether the number of years and the percentage of lung damage are correlated. If they are correlated, discuss the strength of correlation, and the direction (positive or negative). c) Find the correlation coefficient r. Explain what r implies. d) Choose your own significance level a (1 suggests 0.1, 0.05 or 0.01). State and test the hypothesis. Explain what your findings mean. e) Do your observations in part (b) agree to the results from part (c) and (d)? Explain f) Find the regression line equation. Explain what the line implies. g) Draw the regression line on your scatter plot. h) A man has…
College students recorded the self-reported weights (in pounds) of some community college male baseball players and male soccer players. Write a brief comparison of the distributions of weights for the two groups. Include appropriate graphics. Click the icon to view the weights of male baseball and soccer players. Make dotplots using the same axis with one set of data above the other. Choose the correct graph below. Click here to view dotplots C Click here to view dotplots D. Click here to view dofplots B. O Click here to view dotplats A Compare the shape, center, and variation (and mention outliers if there were any). Baseball players' weights are to weigh with The soccer players' weights are with The baseball players tend soccer players. The baseball players have a distribution with variability than the soccer players' distribution. Data table Baseball Players' Weights: 190,192,183,183,190,187,187,187,192,192,184,184,184,192,187,228,183,190,180,184,183,187,184,184,205,187,230 Soccer…
Laila wants to create a data display to clearly show the median salary, the highest salary, and the lowest salary of the 685 employees at her company. She is trying to decide whether she should create a dot plot, a box plot, or a histogram of the salaries. A sample of the data is shown below. $25,745; $26,512; $27,322; $27,750; $29,820; $32,500; $35,448; $52,020; $63,485; $87,167 Which graph should Laila choose? Explain your reasoning by completing the sentences. Click the arrows to choose an answer from each menu. A dot plot Choose... A box plot would display the median, minimum, and maximum clearly A histogram Choose... So, Laila shou would display the median, minimum, and maximum clearly cannot be used to determine the median would not work well because there are too many values Copyright 2022 by Curriculum Associates. All rights reserved. These materials, or any portion thereof, may not be reproduced or shared in any manner without express written consent of Curriculum Associates.
Laila wants to create a data display to clearly show the median salary, the highest salary. and the lowest salary of the 685 employees at her company. She is trying to decide whether she should create a dot plot, a box plot, or a histogram of the salaries. A sample of the data is shown below. $25,745; $26,512; $27,322; $27.750; $29,820; $32,500; $35,448; $52,020; $63,485: $87,167 Which graph should Laila choose? Explain your reasoning by completing the sentences.Click the arrows to choose an answer from each menu. A dot plot Choose... option 1 would display the median, minimum and maximum clearly option 2. would not work well because there are too many different values option 3 cannot be used to determaine the median A box plot Choose... option 1 would display the median, minimum and maximum clearly option 2. might not show the minimum or the maximum option 3 cannot be used to determaine the median A histogram Choose... option 1 would display the median, minimum and maximum clearly…
The boxes below contain 14 numbers, listed in order, of which 6 have been removed. Your job is to use the clues given to determine the missing numbers. Write your answers in the boxes. Mean is 26 The median is 22 The interquartile range is 20 The mode is 18 The range is 60 1 4 15 18 29 30 32 58 Second assignment 1) Use Technology (Desmos Calculator) to create a dot plot that represents the distribution of the data. Then describe the shape of the distribution. (look at past notes about shapes) 6 14 11 8 13 10 10 12 12 10 7 11 9 11 9 11 9 8 2) Find the mean and the median of the data. 3) Find the mean and median of the data with 2 additional values included as described. a) add 2 values to the original data set that are greater than 14. b) add 2 values to the original data set that are less than 6. c) Ass 1 value that is greater than 14 and 1 value that is less than 6 to the original data set. d) Add the two values, 50 and 100. To the…
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The data were collected from a statistics class. The column head gives the variable, and each of the rows represents a student in the class. Find the frequency, proportion, and percentage of right-handed people. LOADING... Click the icon to view the data table. Question content area bottom Part 1 The frequency of right-handed people in the class is enter your response here . (Type a whole number.) Part 2 The proportion of right-handed people in the class is enter your response here . (Type an integer or a fraction.) Part 3 The percentage of right-handed people in the class is enter your response here %. (Type an integer or decimal rounded to one decimal place as needed.)

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