In an effort to inform political leaders and economists discussing the deregulation of electric and gas utilities, data on eight numerical variables from utility companies have been grouped using hierarchical clustering based on Euclideandistance to measure dissimilarity between observations and complete linkage as the agglomeration method.(a) Based on the following dendrogram, what is the most appropriate number of clusters to organize these utility companies?Distance6.56.05.55.04.54.03.53.02.52.01.51.00.520Between Cluster Distance2.57710 13 4 20 2 21 5 1 18 14 19 63Clusterclusters are appropriate based on complete linkage.9 7 12 15 17 8 16 11

Given information: A dendrogram is given. A tree-like diagram known as a dendrogram, records the…

Answered: in an effort to inform political…

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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Show the five-number summary for the following data: 6, 15, 18, 9, 7, 12, 17, 11, 7. minimumfirst quartilemedianthird quartilemaximum Show the boxplot for the data. The box-and-whisker plot has a horizontal axis numbered from 3 to 18. The box-and-whisker is also horizontal. The left whisker is approximately 3, the left edge of the box is approximately 4, the line inside the box is approximately 11, the right edge of the box is approximately 16, and the right whisker is approximately 18. The box-and-whisker plot has a horizontal axis numbered from 6 to 23. The box-and-whisker is also horizontal. The left whisker is approximately 6, the left edge of the box is approximately 7, the line inside the box is approximately 16, the right edge of the box is approximately 21, and the right whisker is approximately 23. The box-and-whisker plot has a horizontal axis numbered from 6 to 18. The box-and-whisker is also horizontal. The left whisker is approximately 6, the left edge of the box is…
Draw the appropriate graph for each of the data sets given below. Explain the chosen graphs and give a short interpretation
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In an effort to inform political leaders and economists discussing the deregulation of electric and gas utilities, data on eight numerical variables from utility companies have been grouped using hierarchical clustering based on Euclidean distance to measure dissimilarity between observations and complete linkage as the agglomeration method. (a) Based on the following dendrogram, what is the most appropriate number of clusters to organize these utility companies? 6.5 6.0 5.5 5.0 4.5 4.0 3.5 Between-Cluster Distance 3.0 2.577 2.5 2.0 1.5 1.0 0.5 10 13 4 20 2 21 5 1 18 14 19 6 3 9 7 12 15 17 8 16 11 Cluster clusters are appropriate based on complete linkage. 4 Distance
An agent for a residential real estate company in a large city has the business objective of developing more accurate estimates of the monthly rental cost for apartments. Toward that goal, the agent would like to use the size of an apartment, as defined by square footage to predict the monthly rental cost. The agent selects a sample of 25 apartments in a particular residential neighborhood and collects the following data: Size (square feet) Rent ($) 850 1950 1450 2600 1085 2200 1232 2500 718 1950 1485 2700 1136 2650 726 1935 700 1875 956 2150 1100 2400 1285 2650 1985 3300 1369 2800 1175 2400 1225 2450 1245 2100 1259 2700 1150 2200 896 2150 1361 2600 1040 2650 755 2200 1000 1800 1200 2750 (a) Determine the coefficient of determination, r2, and interpret its meaning. (b) Determine the standard error of the estimate (Syx).…
The table (on the right) shows the daily COVID-19 confirmed cases in Toronto region from March 8, 2020 to May 16, 2020. (Source: Ontario Public Health ) Year Dally cases (# people) March 8- March 14 50 March 15-March 21 202 a) Use DESMOS graphing technology to create a scatter plot of the data on the next page. Choose March 8- March 14 as week March 22-March 28 357 March 20-April 459 b) On the DESMOS graphing calculator, Determine a linear, a quadratic, and an exponential model using regression. April 5-April 11 085 April 12-April 18 1506 April 19-April 25 1532 April 26-May 2 1201 May 3- May 0 1126 May 10- May 16 071 c) Write the equation of the three models in the table below. Do not write the general regression equations Models Equation R SQUARE VALUE linear model 1 1 Quadratic model 2 Exponential model 3 3 d) Which model fits the data best? Justify using the value of the coefficient of determination
4) A psychiatrist has developed a measurement instrument for the mental state of patients. The test is on a scale of 0-100 (with higher scores meaning the patient is suffering from a higher level of mental duress). She randomly selects a group of individuals to take part in a study using this measurement instrument, and she develops a stem-and-leaf plot of her data as follows: 0 6 11178 2 3 0017899 42 5 67788999 6 7114444499 8 889 9 01 Based on the stem-and-leaf plot, answer the following questions: a. What is the mean, median and mode? b. Mean: 55.08571, median:58, mode:74 c. What is the range, variance and standard deviation? Range: 85, variance 635.4336, standard deviation: 25.20781 d. What is the 25th percentile? What is the interpretation of this value? e. What is the 75th percentile? What is the interpretation of this value? f. What is the interquartile range (IQR)? g. What is the z-score for a patient that scores 88? What is the interpretation of this z score?

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