What does a Model mean? Discuss FIVE characteristics of a Model.
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What does a Model mean? Discuss FIVE characteristics of a Model.
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- Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The data are shown below: Number of Pages (xx) Cost(yy) 650 103.5 485 83.75 266 56.9 829 144.35 514 94.1 863 135.45 335 70.25 211 53.65 879 139.85 A student calculates a linear model using technology (Statistics Calculator or Computer)ˆyy^ = xx + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 851. Cost = $ (Use the linear model with yor rounded coefficients and then round your answer to 2 decimal places.)Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The data are shown below: Number of Pages (xx) Cost(yy) 491 84.74 740 121.6 771 127.94 478 92.92 253 45.42 492 90.88 398 81.72 303 67.42 505 92.7 A student calculates a linear model using technology (Statistics Calculator or Computer)ˆyy^ = xx + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 864.Cost = $ (Use the linear model with yor rounded coefficients and then round your answer to 2 decimal places.)Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore, and recorded number of pages in each textbook and its cost. The bivariate data is shown below, Number of Pages (x) Cost(y) 615 34.9 314 32.84 599 357 31.94 32,42 860 58.6 973 64.38 679 51.74 250 748 24 51.88 A student calculates a linear model (Please show your answers to two decimal places) Use the model above to estimate the cost when number of pages is 520 Cost = S (Please show your answer to 2 decimal places.) Question Help: Message instructor Submit Question
- 4) Conduct a hypothesis test on H0: slope = 0; Ha: slope positive or negative (your hypothesis from part 2). Using α = 0.05, is there a significant linear relationship between x and y (paste your output to support your answer)? What is the linear model (y = mx + b, fill in the numbers for m and b)? In the context of the problem, what is the interpretation of the slope, m? Select Stat menu option across the top and then select Regression -> Simple Linear Enter your x and y variables Under the hypothesis test section go to Ha slope and specify the direction of the relationship (< or >) Select Compute sodium protein 130 1015 2260 9140 14200 1180 1.5125 1210 2200 4210 5220 0290 2210 0140 2180 0280 0290 190 1180 0140 480 1220 1140 2190 1125 1200 10 3160 5240 5135 045 0280 0140 3170 375 3220 1250 1.5180 0170 1170…Report the equation of the regression line and interpret it in the context of the problemAccounting The following information is available regarding the total repair costs of Comfort Designs Company for six months of 2022: Month Units Produced Repair costs January 1,500 14,875 February 1,750 15,500 March 1,000 12,250 April 1,250 16,250 May 1,875 18,250 June 2,250 21,750 Using the least-square regression analysis on Excel, construct a cost formula. Run a regression analysis on the data above and provide your response to the following three questions. SHOW WORK (1) Provide the regression output and construct a cost model. (2) According to the cost model, what is the estimated total fixed cost? (3) According to the cost model, what is the estimated variable cost per unit?
- Find the regression model. Y 26 - 9. 7 4 4 11 O A) y=5,27-0, 11x O B) y=5,27+0,11x C) y=2,56+5,43x O D) y=-0,11+5,27x O E) y=-3,21+2, 11xStatistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (x) 530 333 769 259 583 446 203 650 947 Cost(y) 35.8 23.98 50.14 14.54 47.98 40.76 9.18 39 56.82 A student calculates a linear model + y = Use the model to estimate the cost when number of pages is 732. Cost = $ (Please show your answer to 2 decimal places.) x. (Please show your answers to two decimal places)Fifty states Here is a data set on various measures of the50 United States. The Murder rate is per 100,000, HSGraduation rate is in %, Income is per capita income indollars, Illiteracy rate is per 1000, and Life Expectancy isin years. Find a regression model for Life Expectancywith three predictor variables by trying all four of thepossible models.a) Which model appears to do the best?b) Would you leave all three predictors in this model?c) Does this model mean that by changing the levels ofthe predictors in this equation, we could affect lifeexpectancy in that state? Explain. d) Be sure to check the conditions for multiple regres-sion. What do you conclude?
- d and eStatistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The data are shown below: Number of Pages (x ) Cost(y ) 720 121.6 436 75.68 363 63.19 346 65.98 325 62.25 488 93.44 980 152.4 442 67.46 262 62.06 A student calculates a linear model using technology (Statistics Calculator or Computer)ˆy = x + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 274.Cost = $ (Use the linear model with yor rounded coefficients and then round your answer to 2 decimal places.)The outcome variable is degree of brand liking (measured essentially as some sort of percentage). Higher numbers mean it was “liked” more. There are two potential predictors. The first is moisture content which is controlled at levels of 4, 6, 8, and 10. The second is sweetness, the recorded values are 2 and 4. (Matrix plot is attached) Comment on what you expect the regression analysis to show with regard to the relationship of the two predictors with the response. Comment on the scatterplot that shows the predictors against each other. Note that each “point” on this graph in fact represents 2 data points. What does this imply about the “experimental design”? About “collinearity”? About the ways in which we will be able to discuss the effects of moisture and sweetness?
