The following data are the results of a classification analysis. The output includes the validation output Ytrue and predicted classifications obtained with three trained classification algorithms termed Y1, Y2 and Y3. Ytrue Y1 Y2 Y3 1 0 0 1 1 2 0 0 0 0 3 1 1 0 0 4 1 1 0 1 5 1 1 0 0 6 1 1 0 1 7 0 0 1 8 1 1 0 1 9 1 1 0 1 10 1 1 0 1 11 1 0 0 0 12 0 0 1 1 13 1 1 0 0 14 1 1 0 1 15 1 1 0 1 16 0 0 1 0 17 0 1 0 1 18 0 0 1 1 a) Analyze the performance of the classifier Y2. To this end, using the given data compute and report the usual figures TN, FP, FN and TP of the confusion matrix as well as the performance measures TPR and FPR. Briefly comment on the performance of this classifier. b) Repeat the items in a) for the classifier Y1. c) Compare the two classifiers.

We are looking at a classification problem where a restaurant owner is trying to predict a discrete output variable with three different possible categories given some input variables. The categories are1: to buy the lunch special with dessert2: to buy the lunch special without dessert3: to not buy the lunch special.After collecting some data on a sample of customers in the previous month, you run a classification tree to predict the output variable that interests the restaurant owner. The classification tree had three terminal nodes with one node where all the customers bought the lunch special with dessert, another node where all the customers bought the lunch special without dessert and a third node that was a little bit more intricate to use. That node had 250 customers in total. Of those 250 customers, 44 bought the lunch special with dessert and 77 did not buy that lunch special. What is the Gini index measure of impurity of that node?

The Government of Pakistan publishes information about Corona virus Cases in Pakistan. The following contingency table provides a cross classification of cities of Pakistan and Covid-19 Stats. 国 Covid-19 Stats City Active Confirmed Cases Deaths Recoveries Cases AJK 271 95 6 170 Balochistan Islamabad 4514 2900 49 1565 2898 2694 30 169 ΚΡΚ Punjab Sindh 10485 27850 7030 20194 482 540 2973 7116 29647 14554 503 14590 At the 5% significance level, do the data provide sufficient evidence to conclude than an association exists between cities and Covid-19 stats?

The production department of Celltronics International wants to explore the relationship between the number of employees who assemble a subassembly and the number produced. As an experiment, 2 employees were assigned to assemble the subassemblies. They produced 11 during a one-hour period. Then 4 employees assembled them. They produced 18 during a one-hour period. The complete set of paired observations follows.   Number ofAssemblers   One-HourProduction (units)   2       11     4       18     1       5     5       23     3       18       The dependent variable is production; that is, it is assumed that different levels of production result from a different number of employees.        Click here for the Excel Data File     Draw a scatter diagram. On the graph below, use the point tool to plot the point corresponding to the first Number of Assemblers and her Production (No of Assemblers1). Repeat the process for the remainder of the sample (No of Assemblers2,…

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The Government of Pakistan publishes information about Corona virus Cases in Pakistan. The following contingency table provides a cross classification of cities of Pakistan and Covid-19 Stats. City Covid-19 Stats Confirmed Cases Active Cases Deaths Recoveries AJK 271 95 6 170 Balochistan 4514 2900 49 1565 Islamabad 2898 2694 30 169 KPK 10485 7030 482 2973 Punjab 27850 20194 540 7116 Sindh 29647 14554 503 14590 At the 5% significance level, do the data provide sufficient evidence to conclude than an association exists between cities and Covid-19 stats?

A local bank has two branches in a cty: one in the business center of the city and another-in a residential area. The bank's operations manager wants to Improve front-office employee scheduling during the lunch hour (12:00-13:00) period. The manager starts with studying the customer walting times at the two branches and collects data for two groups of 35 customers at each branch. Customers at the business-center branch walted on average 3.8 minutes, whle those at the residential branch waited 4.4 minutes on average, Assume that the population standard deviations are 1.8 (business-center branch) and 2.5 tresidential branch). a. Considering the real-ife problem, determine the point estimate of the unknown quantity that needs to be estimated. (Round to two decimal places.) b. Determine the critical value needed to compute a Bs confidence interval (Round to two decimal places.) c. Compute the confidence interval the operations manager would be interested in computing using the confidence…

Aaanswer correctly for upvote

The production department of Celltronics International wants to explore the relationship between the number of employees who assemble a subassembly and the number produced. As an experiment, two employees were assigned to assemble the subassemblies. They produced 15 during a one-hour period. Then four employees assembled them. They produced 25 during a one-hour period. The complete set of paired observations follows.   Number ofAssemblers   One-HourProduction (units)   2       15     4       25     1       10     5       40     3       30       The dependent variable is production; that is, it is assumed that different levels of production result from a different number of employees.         Click here for the Excel Data File     Draw a scatter diagram. On the graph below, use the point tool to plot the point corresponding to the first Number of Assemblers and her Production (No of Assemblers1). Repeat the process for the remainder of the sample (No of…

Gaucher, Friesen, and Kay (2010) found that masculine-themed words (such ascompetitive, independent, analyze, strong) are commonly used in job recruitmentmaterials, especially for job advertisements in male-dominated areas. In a similarstudy, a researcher counted the number of masculine-themed words in jobadvertisements for job areas, and obtained the following data.Area Number of Masculine WordsPlumber 14Electrician 12Security guard 17Bookkeeper 9Nurse 6Early-childhood educator 7Determine what kind of graph would be appropriate for showing this distribution andsketch the frequency distribution graph.