1. Teaching methods: A class of 30 computer science students were taught introductorycomputer programming class with an innovative teaching method that used a graphicalinterface and drag-and-drop methods of creating computer programs. At the end of theclass, 23 of these students said that they felt confident in their ability to write computerprograms. Another class of 40 students were taught the same material using a standardmethod. At the end of class, 25 of these students said they felt confident. Assume thateach class contained a simple random sample of students. Construct a 95% confidenceinterval for the difference between the proportions of students who felt confident.(a) List all variables given and the calculator program.(b) Find the point estimate.(c) Find the margin of error.(d) List the confidence interval.(e) Interpret the confidence interval.

The formula for the confidence interval for two proportions is,where,Since you have posted a…

Answered: 1. Teaching methods: A class of 30…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter2: Systems Of Linear Equations

Section2.4: Applications

Problem 28EQ

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mr omadoh sells sheep at the annual county auction. he wishes to use lpp to describe his problem and therefore consults the uon for assistance. sheep come in three sizes: large, medium and small. the large sheep(xl) costs sh.3500 and sells for sh.6000 each; the medium sheep (xm) costs sh.3000 and sells for sh.5000 each; the small one (xs) cost sh.1500 and sells for sh.2500 each. Omardoh must order atleast twenty of each type.he can spend nomre than sh. 0.3million on sheep invstment.his space limitation cant exceed 60 units of the large and medium sheep.he must obtain a gross revenue of atleast half a million from selling sheep.he further wants to maximise his profit subject to all the above constraints.i) formulate the appropriate LPP for omardohii)present the standard form of the LPPiii) would the profit be maximised if the objective function y= 50Xl+40Xm+20Xs was assumed for the same problem
Hello! Can you please help me out with this problem? Write on a paper clearly, and upload it here. For the Cayley table, do R and L. thanks!
Hello there! Can you please help me out with this problem with a Cayley table? Write neatly and thank you!
So, what does "dynamic programming" really entail?
Some analysts complain that spreadsheet models are difficult to resize. You can be the judge of this. Suppose the current product mix problem is changed so that there is an extra resource, packaging labor hours, and two additional PC models, 9 and 10. What additional input data are required? What modifications are necessary in the spreadsheet model (including range name changes)? Make up values for any extra required input data and incorporate these into a modified spreadsheet model. Then optimize with Solver. Do you conclude that it is easy to resize a spreadsheet model? (By the way, it turns out that algebraic models are typically much easier to resize.)
The exercise involving data in this and subsequent sections were designed to be solved using Excel. Johnson Filtration, Inc. provides maintenance service for water-filtration systems. Suppose that in addition to information on the number of months since the machine was serviced and whether a mechanical or an electrical repair was necessary, the managers obtained a list showing which repairperson performed the service. The revised data follow. Repair Time(hours) Months SinceLast Service Type ofRepair Repairperson 2.9 2 electrical Dave Newton 3.0 6 mechanical Dave Newton 4.8 8 electrical Bob Jones 1.8 3 mechanical Dave Newton 2.9 2 electrical Dave Newton 4.9 7 electrical Bob Jones 4.2 9 mechanical Bob Jones 4.8 8 mechanical Bob Jones 4.4 4 electrical Bob Jones 4.5 6 electrical Dave Newton Ignore for now the months since the last maintenance service (x1 ) and the repairperson…
Workers in Company XYZ used 200 computers for their daily operation. In that company, the computers are categorized into type A and B. The workers usually complained that they experience performance problems with the computers more than once per week. Based on a survey, the company found that fifty of the Type A computers will encounter problems more than once per week. Meanwhile seventy-five of the Type B computers do not experience problems more than once per week. There are 120 Type B computers in the company. Based on the above scenario determined whether the events “Type A computer” and “experience problems more than once per week” are independent event? Explain.
This article delves into the distinctions between symmetric and asymmetric multi-processing techniques.
Recent research suggests that the amount of time that parents spend talking about numbers can have a big impact on the mathematical development of their children (Levine, Suriyakham, Rowe, Huttenlocher, and Gunderson, 2010). In the study, the researchers visited the children's homes between the ages of 14 and 30 months and recorded the amount of "number talk" they heard from the children's parents. The researchers then tested the children's knowledge of the meaning of numbers at 46 months. The following data are similar to the results obtained in the study. X 5 Complete the following distribution table. 4 3 Children's Knowledge-of-Numbers Scores for Two Groups of Parents Low Number-Talk Parents High Number-Talk Parents 3, 4, 5, 4, 5 4, 2, 3, 5, 4 5, 3, 4, 5, 4 2 1 2, 1, 2, 3, 4 3, 3, 2, 2, 1 5, 3, 4, 1, 2 flow fhigh Using the following graphing tool, sketch a polygon showing the frequency distributions for children with low number-talk parents and children with high number-talk…
In a well crafted spreadsheet, the formulae will never need to be altered, regardless of the changes that are made to the data or the parameters. This is because the formulae were not designed carelessly. True False
It describes a scenario in which a math teacher named Matt allows his students to use a 1-page reference sheet during exams, and compares the effectiveness of this method to a colleague's method of providing a pre-made reference sheet for students.
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