Compute the MAE for the data below: Time series Forecast 16 19.6 20 19 18 19.14 22 19
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- Find the mean hourly cost when the cell phone described above is used for 240 minutes.Calculate MSE for the 4 periods for which the actual and forecasted number of customers given in the table below: Period Actual Number of Customers Forecasted Number of Customers Error 1 1,975 2,000 2 2,050 2,025 3 1,925 1,975 4 2,075 2,025 0 390.63 37.5 6,250 1,562.5b. Compute the seasonal indexes for the four quarters (to 3 decimals).
- ITEM 2020-unit price (p0) 2020 quantity(q0) 2021-unit price(p1) 2021 quantity (q1) p0q0 p1q1 MINERAL SPIRITS 17.7 30 20.7 45 531 531 10mm spanner 37 60 49 50 2220 2450 25mm brush 42 30 48 40 1260 1920 Total 4011 5301.50 Using 2020 as the base year, compute the Paasche price index for all of theitems for 2021. Interpret your answerAnnualized percentage return on investment (as compared to the Standard & Poor's 500 Index) for 10 randomly selected stock screeners are reproduced in the table. Complete parts a through c.The annual revenue of Amazon is given in the table below (sourceLinks to an external site.). Year Amazon Annual Revenue(Billions of US dollars) 2020 386.064 2019 280.522 2018 232.887 2017 177.866 2016 135.987 2015 107.006 2014 88.988 2013 74.452 2012 61.093 2011 48.077 2010 34.204 In what year will the estimated revenue of Amazon be 1,357 billion US dollars? Note: I am asking for the year, not the number of years since 2010. This may happen between two years. Round to the nearest year.
- Use the statistics in the following report generated forCommunity Hospital to make the following threecalculations (non-leap year). Round to one decimal place.Community Hospital Annual Statistics 2020: Newbornbassinets:January to March: 12, April to June: 10July to September: 15 October to December: 20Monthly Newborn Inpatient Service Days:January: 300, February: 280, March: 307, April: 326,May: 355, June: 370, July: 427, August: 415, September:430, October: 452, November: 444, December 495(i) Calculate the percentage of occupancy for each month.(ii) Calculate the percentage of occupancy for each quarter(January through March, April through June, July throughSeptember, and October through December).(iii) Calculate the percentage of occupancy for the year.Calculate the Seasonal Index from the following data using the average method : Year 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter 2013 72 68 80 70 2014 76 70 82 74 2015 74 66 84 80 2016 76 74 84 78 2017 78 74 86 82the data contained in the datafile named crudecost shows the U.S. refiner acquisition cost of crude oil in dollars per barrel (energy information administration website,February 3, 2014).a. construct a time series plot. What type of pattern exists in the data?
- Table 2 shows the statistics for bed count and inpatient service days that Manatee Bay Health Center reported for last year (a non-leap year). The hospital chief operations officer (COO) is meeting with the board of directors next Tuesday for a quarterly meeting. He asked you to figure the hospital's occupancy ratio for the past year. You have been given the statistics in Table 2 to calculate the annual percentage of occupancy for the past year's operations. Table 2 – Manatee Bay Health Center Hospital Bed Count and Inpatient Service Days Manatee Bay Health CenterHospital Bed Count and Inpatient Service Days Time Period Bed Count Inpatient Service Days January 1 – May 31 200…Consider the two tables of quantities and prices: Quantities: Food & Transport Clothing Price: Food & Beverages Clothing 2010 2011 2012 20 35 25 29 35 40 37 2010 2011 2012 40 47 33 43 47 Compute the Paasche index for 2012 using 2010 as the base year. (1 d.p.)Table 1. Violent victimization, by type of crime, 2016, and 2017 Appendix table 3. Standard errors for table 1: Violent victimization, by type of crime, 2016, and 2017 From the estimation of the number of Rape/sexual assault (298,410) in 2016 at 95% CI, what is the lower limit? (Round off to one decimal place if necessary)
