What happens after the testing phase has been completed and an acceptable model has been developed?
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What happens after the testing phase has been completed and an acceptable model has been developed?
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- Two methods of assembling a television component are under consideration by management. Because of mire expensive machinery requirements, method B will only be adopted if it is significantly shorter than method A by more than a minute. In order to determine which method to adopt a skilled worker becomes proficient in both methods, and is then timed with a stopwatch while assembling the component by both methods. The following data were obtained:A consulting group recently conducted a global survey of product teams with the goal of better understanding the dynamics of product team performance and uncovering the practices that make these teams successful. One of the survey findings was that 33% of organizations have a coherent business strategy that they stick to and effectively communicate. Suppose another study is conducted to check the validity of this result, with the goal of proving that the percentage is less than 33%. Complete parts (a) and (b) below. ..... a. State the null and research hypotheses. Identify the null and alternative hypotheses. О А. Но: п20.33; Н,: п 0.33 С. Но п#0.33;B Н,: п%3D0.33 Ο D. Ho: π = 0.33; ,: π# 0.33 b. A sample of 100 organizations is selected, and results indicate that 32 organizations have a coherent business strategy that they stick to and effectively communicate. Use the p-value approach to determine at the 0.01 level of significance whether there is evidence that the percentage is less…only handwritten solution accepted
- In order to take advantage of the burgeoning public interest in sustainability, Klorax has developed a nonsynthetic line of natural cleaning products called GreenClean. One of the first sustainable products Klorax introduced was a natural cold-water detergent. The company has now gathered several years’ worth of sales data for this product in order to develop various forecast models. The company’s marketing department believes that sales increase when there are several major environmental (i.e., “green”) episodes in the national media, such as a government energy report, an increase in gasoline or energy prices, an oil spill, a pollution episode, a company getting positive press for undertaking a major green project, etc. Therefore, the marketing department wants to develop a linear regression forecasting model that relates the number of green episodes reported monthly in the national media to monthly sales of the detergent. The marketing department had several staff members go through…Windy, part III Exercises 12 and 14 give summaries anddisplays for two potential sites for a wind turbine. Testan appropriate hypothesis to see if there is evidence thateither of these sites has a higher average wind speed.You take a survey that is supposed to measure whether you are an extrovert or not. The score you get on the extrovert survey is a z-score of 2.0. What does that mean about your level of extraversion compared to the average score?
- Chapter 5, Section 1, Exercise 019 MORE BENEFITS OF EATING ORGANICUsing specific data, we find a significant difference in the proportion of fruit flies surviving after 13 days between those eating organic potatoes and those eating conventional (not organic) potatoes. This exercise asks you to conduct a hypothesis test using additional data. In this case, we are testing H0 : po= pcHa: po > pc where po and pc represent the proportion of fruit flies alive at the end of the given time frame of those eating organic food and those eating conventional food, respectively. Use a 5% significance level.Effect of Organic Bananas After 25 DaysAfter 25 days, the proportion of fruit flies eating organic bananas still alive is 0.42, while the proportion still alive eating conventional bananas is 0.40. The standard error for the difference in proportions is 0.029.What is the value of the test statistic?Round your answer to two decimal places. z= What is the p-value?Round your answer to…1) The population regression function for the 2-variable model is Y,= B, + B,X, +U, Where Ui is used as a surrogate for all the variables omitted from the regression but collectively effect Y₁, why then not use a multiple regression with all the necessary variables included?z-test or t-test. show the result of the table in excel. upvote will be given. (YOU MAY USE EXCEL IN SOLVING THE PROBLEM. DO NOT FORGET TO SCREENSHOT THE RESULTS/table.) You just implemented a new Ergonomics Intervention Scheme to shorten the time to make your company’s product ABC. Fifteen of your workers, who used the present method were requested to use the proposed method. From your initial analysis, this proposed method will be faster (in minutes) than the present system. Assume that the data are normally distributed, at the 0.05 alpha, is your initial analysis accurate? a. what is the null and alternative hypothesis. b. what is the p-value? c. reject or accept Ho?
- z-test or t-test. show the result of the table in excel. upvote will be given. (YOU MAY USE EXCEL IN SOLVING THE PROBLEM. DO NOT FORGET TO SCREENSHOT THE RESULTS/table.) You just implemented a new Ergonomics Intervention Scheme to shorten the time to make your company’s product ABC. Fifteen of your workers, who used the present method were requested to use the proposed method. From your initial analysis, this proposed method will be faster (in minutes) than the present system. Assume that the data are normally distributed, at the 0.05 alpha, is your initial analysis accurate?Match the description on the right with the correct term on the left regarding types of forecasting methods. 1. Econometric, input-output, and simulation are techniques used with this type of forecasting method, which assumes that the variable to be forecasted is related to one or more intrinsic variables. Causal Methods 2. The Delphi technique, market surveys, and life-cycles analogy are techniques used with this type of forecasting method, which relies on the judgment of individuals or Qualitative Methods Time-Series Methods groups. 3. Moving averages and exponential smoothing are techniques used with this type of forecasting method, which assumes that time is the only important variable.Suppose when you add flexibility to your model by adding higher-order terms or more predictor variables that you begin to see the test or validation error (MSE or SSE evaluated on the test or validation set) begin to increase away from the training error. What kind of a problem are your models experiencing?