(b) Using statistical software, develop a quadratic trend equation that can be used to forecast revenue (in millions of dollars). (Round your numerical values to three decimal places.)T₂ =9.148 + 1.126tX(c) Using the trend equation developed in part (b), forecast revenue (in millions of dollars) in year 11. (Round your answer to two decimal places.)$million A statistical program is recommended.A certain company produces and sells frozen pizzas to public schools throughout the eastern United States. Using a very aggressive marketing strategy, they have been able to increase their annual revenue by approximately $10 million over the past 10 years. But increased competition has slowed their growth rate in the pastfew years. The annual revenue, in millions of dollars, for the previous 10 years is shown.Year Revenue1202183456789108.4310.7412.9814.1116.2117.2118.3718.3518.50(a) Construct a time series plot.18.53KKGD0 1 2 3 4 5 6 7 8 9 10 11Year0 1 2 3 4 5 6 7 8 9 10 11YearComment on the appropriateness of a linear trend.O The time series plot shows that a linear trend is most appropriate.O The time series plot shows that neither a linear nor a curvilinear trend is appropriate.Ⓒ The time series plot shows that curvilinear trend may be more appropriate.i01 2 3 4 5 6 7Year89 10 11o0123456Year789 10 11ⓇActivate Windows

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Answered: A statistical program is recommended. A…

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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e A researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students made toward completing a bachelor's degree. One aspect of his research vas to determine whether students who first attended community college took longer to attain a bachelor's degree than those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the esults of his study. Complete parts a) through e) below. E Click the icon to view the sample data. OA. The samples are independent. O B. The samples can be reasonably assumed to be random. OC. The population is given to be normally distributed. OD. The sample sizes are large (both greater than or equal to 30). O E. The sample sizes are not more than 5% of the population. :) Does the evidence suggest that community college transfer students take longer to attain a bachelor's degree? Use an a= 0.10 level of significance.…
Quiz Module 1 The stem-and-leaf plot shows house sale prices over the last week in Tacoma. The stem is in hundres of thousands of dollars the leaf is in tens of thousands of dollars. What is the price of the most expensive house sold? 0|6677789991|024477788899992|00112344456678893|00011224
Use excel to make the calculations One product has a holding cost of $250 per year. This product can be shipped in either 3 or 8 day shipping, with the faster shipping costing $2 more per product. Using the slower method would be how much more expensive per product than the faster method? Auto sales over a 4-month period were forecasted as follows: 89, 98, 105, and 97. The actual results over the 4-month period were as follows: 92, 96, 101, and 100. What was the MAD of the 4-month forecast? The errors in a particular forecast are as follows: 3, -3, 4, 0, -2. What is the tracking signal for each period of the forecast?
Holding LargeTransaction constant, how will the predicted odds of purchase fraud change for a purchase with a SimilarityScore of 900 compared to 675? Predicted odds would increase Odds are 97.01 percent less O Odds are 98.26 percent less O Odds are 90.37 percent less O Odds are 99.15 percent less
2. The phone rings and the President is calling you. He says, 'Can you please tell me how much of the variability of my popularity rating is explained by the inflation rate? This is the data: Inflation 10 12 8 |14 rate Popularity70 Rating 75 85 84 48
Government agencies keep data about the income distribution of the population. The Garcia family and Wood family live in a county with 6000 families. The Garcia family's income is at the 38 percentile. The Wood family's income is at the 73 th percentile. (If necessary, consult a list of formulas.) (a) Which of the following must be true about the Garcia family's and the Wood family's incomes? Both the Garcia family and the Wood family earn more than the median income. Both the Garcia family and the Wood family earn less than the median income. O The Wood family earns more than the Garcia family. O The Garcia family earns more than the Wood family. (b) Which of the following must be true about the Garcia family's income? O About 38% of the families in their county earn less than the Garcia family. O The Garcia family earns about 38% of the highest income in their county. O The Garcia family's income is in the top half of incomes in their county. O The Garcia family earns $38,000.
Subject: statistics
RABCD X₁ 12 20 2 A researcher is interested in seeing if listening to a political debate changes anxiety scores among people. The researcher knows of no previous research that would predict whether anxiety scores would be raised or lowered. The researcher gathers a sample of n = 4, and gives these participants an anxiety test before and after listening to the political debate. Below are the data (anxiety scores) at time one (X₁) and time two (X₂) for all participants. Participant 10 10 X₂ 28 24 26 18 b.) Is this a one or a two-tailed test? a.) State the researcher's null and alternative hypotheses (using symbols OR everyday language): c.) Find the critical value (alpha = .05) d.) Compute the observed test statistic (remember to show your work) 5 e.) Based on the information above, what is your statistical conclusion? f.) Describe briefly what we can conclude in practical terms 6 g.) Based on the results above, calculate a Cohen's d and interpret what this tells us about the difference…

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