game viewed as similar to Space Pirates. Estimated profits (in thousands ofdollars) with and without competition are as follows:DEMANDSpace Pirates (withcompetition)ProfitHighMediumLow$800$400$200Probability0.30.40.3DEMANDSpace(without competition)ProfitPiratesHighMediumLow$16000.5$8000.3$400ProbabilityDevelop a decision tree for the Video Tech problem.0.2 Video Tech is considering marketing one of two new video games for comingholiday season: Battle Pacific or Space Pirates. Battle Pacific is a uniquegame and appears to have no competition. Estimated profits (in thousands ofdollars) under high, medium, and low demand are as follows:DEMANDBattle PacificHigh$1000MediumLowProfit$700$300ProbabilityVideo Tech is optimistic about its Space Pirates game. However, the concernis that profitability will be affected by a competitor's introduction of a video0.20.50.3

We have to make decision tree for the video tech problem

Answered: game viewed as similar to Space…

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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AutoWrecks, Inc. sells auto insurance. AutoWrecks keeps close tabs on its customers' driving records, updating its rates according to the trends indicated by these records. AutoWrecks' records indicate that, in a "typical" year, roughly 70% of the company's customers do not commit a moving violation, 10% commit exactly one moving violation, 15% commit exactly two moving violations, and 5% commit three or more moving violations. This past year's driving records for a random sample of 100 AutoWrecks customers are summarized by the first row of numbers in the table below. That row gives this year's observed frequency for each moving violation category for the sample of 100 AutoWrecks customers. The second row of numbers gives the frequencies expected for a sample of 100 AutoWrecks customers if the moving violations distribution for this year is the same as the distribution for a "typical" year. The bottom row of numbers contains the following value for each of the moving…
Elements of Statistical Inference Researchers are interested in whether giving individuals temporary financial incentives can induce them to exercise more and lead to the creation of long-lasting habits. To study this question, researchers placed 118 participants into two randomly assigned groups: treatment and control. The treatment group will get a financial incentive to attend the gym more often and the control group will not and then they will compare a variety of outcomes across groups at the end of the experiment. The dummy variable treatment will keep track of which participants are in which group and takes the value of 1 if the individual is in the treatment group and 0 otherwise. If treatment is truly randomly assigned, we shouldn't expect systematic differences across groups in predetermined characteristics. However, it is good research practice to show that the characteristics of each group look 'balanced' and consistent with random assignment. For instance, we might…
Answer the following questions based on the Strategy Region graph given below. When probability of high settlement is 12% and the probability of medium settlement is 40%, what is the optimal strategy? When probability of medium settlement is 20%, what is the highest probability of high settlement so that the Accept strategy to be optimal?
Acupuncture. Research reported in 2008 brings to lightthe effectiveness of treating chronic lower back pain withdifferent methods. One-third of nearly 1200 volunteers were administered conventional treatment (drugs, physi-cal therapy, and exercise). The remaining patients got 30-minute acupuncture sessions. Half of these patientswere punctured at sites suspected of being useful andhalf received needles at other spots on their bodies.Comparable shares of each acupuncture group, roughly45%, reported decreased back pain for at least six monthsafter their sessions ended. This was almost twice as highas those receiving the conventional therapy, leading theresearchers to conclude that results were statisticallysignificant.a) Why did the researchers feel it was necessary to havesome of the patients undergo a “fake” acupuncture?b) Because patients had to consent to participate in thisexperiment, the subjects were essentially self-selected—a kind of voluntary response group. Explain why…
Case. 15.1. Ski Jacket Production. Egress, Inc., is a small company that designs, produces, and sells ski jackets and other coats. The creative design team has labored for weeks over its new design for the coming winter season. It is now time to decide how many ski jackets to produce in this production run. Because of the lead times involved, no other production runs will be possible during the season. Predicting ski jacket sales months in advance of the selling season can be quite tricky. Egress has been in operation for only three years, and its ski jacket designs were quite successful in two of those years. Based on realized sales from the last three years, current economic conditions, and professional judgment, 12 Egress employees have independently estimated demand for their new design for the upcoming season. Their estimates are listed in Table 15.2 To assist in the decision on the number of units for the production run, management has gathered the data in Table 15.3. Note that S…
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Answer the following questions based on the Strategy Region graph given below. When probability of high settlement is 12% and the probability of medium settlement is 40%, what is the optimal strategy? When probability of medium settlement is 20%, what is the highest probability of high settlement so that the Accept strategy to be optimal?
Meagan Dubean manages a portfolio of 200 common stocks. Her staff classified the portfolio stocks by 'industry sector' and 'investment objective.' Investment Industry Sector Objective Electronics Airlines Healthcare Total Growth 84 21 35 140 Income 36 9 15 60 Total 120 30 50 200 Which of the following statements is true? Growth and Healthcare are complementary events. Electronics and Growth are independent. Electronics and Growth are mutually exclusive. Airlines and Healthcare are collectively exhaustive. Electronics and Healthcare are collectively exhaustive.
Selecting the Appropriate Inferential Test: For each of the studies below, please identify the following (or indicate N/A "not applicable" if the feature is not relevant to the design): a) Independent Variable(s) (IVs) and # of levels for any IVs (for Correlation/Regression, identify the predictor and predicted variable rather than IV and DV) b) Dependent Variable (DV) c) Scale of Measurement for the Dependent Variable: (Nominal, Ordinal, Interval, Ratio) for Correlation/Regression please make sure you identify the scale of measurement for both variables d) Appropriate Statistical Test (If it is a Factorial ANOVA, make sure to name the design: e.g., 2 X 2, 2 X 3, etc.)
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Textbook exercise: A city’s status and living conditions may affect how its residents perceive their mayor and city council. Dr. Benevita has used data from Statistics Canada to rank larger metropolitan areas against each other. Focusing on unemployment rates, median household income, and crime rates, he has given Calgary an overall positive ranking (low unemployment, high income, and relatively low crime), and Winnipeg an overall negative one (mid-range unemployment, fairly low income, and very high crime). Dr. Benevita has contacted 40 residents of each city to respond to one simple question: “How competent do you believe your municipal leaders are in governing your city?” Participants rated their municipal government on a scale of -3 (completely incompetent) to +3 (completely competent). A perfectly normal distribution around the central, neutral, point would have a mean of 0 and a standard deviation of 1.66. We will use this as our comparison point to determine whether residents of…
Be sure to include r² =

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