The following table shows a company's annual revenue (in billions of dollars) for 2009 to 2014.| Year | Period (t) | Revenue ($ billions) ||------|------------|----------------------|| 2009 | 1 | 23.6 || 2010 | 2 | 29.2 || 2011 | 3 | 38.0 || 2012 | 4 | 50.1 || 2013 | 5 | 59.8 || 2014 | 6 | 66.6 |(a) Construct a time series plot.Four time series plots are shown:1. Plot 1: A straight line moving downward.2. Plot 2: A curve peaking around Period 3, then sloping downwards.3. Plot 3: A curve dipping between Periods 2 to 4, then rising sharply.4. Plot 4: A straight line moving upward.Question: What type of pattern exists in the data?- The time series plot shows a downward linear trend.- The time series plot shows a downward curvilinear trend.- The time series plot shows an upward linear trend.- The time series plot shows an upward curvilinear trend.(b) Develop a linear trend equation for this time series to forecast revenue (in billions of dollars). (Round your numerical values to three decimal places.)$ T_t = $ [Input box](c) What is the average revenue increase per year (in billions of dollars) that this company has been realizing? (Round your answer to three decimal places.)\$ [Input box] billion(d) Compute an estimate of this company’s revenue (in billions of dollars) for 2015. (Round your answer to two decimal places.)\$ [Input box] billion

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Answered: What type of pattern exists in the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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3:18 K The accompanying data represent the percentage of recent high school graduates (graduated within 12 months before the given year-end) who enrolled in college in the fall. Construct a time-series plot and comment on any trends. Click the icon to view the data table. Year 1989 Choose the correct time-series plot below. O A. 1990 1991 1992 1993 1994 1995 1996 1997 Percent Enrolled College Enrollment 70+ 64- 58++ 1989 1997 2005 Year College Enrollment Percent Enrolled 59.6 60.1 62.3 61.7 62.4 61.7 61.7 65.5 67.5 Q ||| = OB. Print Percent Enrolled Comment on any trends. Choose the correct comment below. Year 1998 1999 2000 2001 2002 2003 2004 2005 College Enrollment 70- 64- 58 1989 (...) 1997 2005 Year A. The percentage of high school graduates who enrolled in college has generally decreased, though there have been some up years. B. The percentage of high school graduates who enrolled in college has generally increased, though there have been some down years. OC. There are not any…
A student is trying to determine the doubling time for a population of the bacterium Giardia lamblia (G. lamblia). He starts a culture in a nutrient solution and counts the bacteria every 4 hours. His data are shown in the table. Time (h) 0 4 8 12 16 20 24 Bacteria count (CFU/mL) 37 47 63 78 105 130 176 (a) Make a scatter plot of the data. (b) Use a calculator to find an exponential curve f(x) = b · ax that models the bacteria population x hours later. (Round your answer to three decimal places.) f(x) = (c) Graph the model from part (b) together with the scatter plot in part (a). Use the feature to determine how long it takes for the bacteria count to double. (Round your answer to one decimal place.) h
Statistics: Forecasting
Econometrics
Betty and Bob invest $2,000 in an account. a. After 8 years the account balance is $6,129.71. Find their per annum continuous rate of return. Your final answer should be correct to 2 places after the decimal point. ______________ b. If the trend continuous then find the account balance after 20 years. Your final answer should be correct to 2 places after the decimal point. _____________
What is the condition to satisfy to determine the end point of the approximation of values in the Maclaurin series? O lea | Es O Ea 0
stastistic,time series
Find text or tools Use the information provided below to answer questions 24-25. INFORMATION The times series graph below shows information about the quarterly number of tourists from the European Union (EU) to vh Africa over the 2021-2023 period. The underlying trend line indicated by the dotted line is defined by the equation, y 703x-176 577. Time ones graph of quarterly number of tourists for EU to South 40000 REANDDIC 300000 2240 2010 200000 150000 18390 1000 0 2 --T Arica (2021-2023) 12920 30000 2013 8 10 1999 18 QUESTION 24 (4 marks) Using data from the graph, estimate the mean seasonal variation (or average seasonal effect) for quarter 4 (Q4) and use it to predict the number of tourists from the EU expected to visit South Africa in quarter 4 of 2024. A. The mean seasonal variation is -25 000; the number of tourists from the EU expected to visit South Africa in quarter 4 of 2024 is 322 825. B. The mean seasonal variation is 25 000, the number of tourists from the EU expected to…
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