You are a data analyst working for a popular lifestyle magaz…
You are a data analyst working for a popular lifestyle magazine in Seattle, Washington. The magazine is planning a special feature on the coffee culture in Seattle, highlighting the daily coffee consumption in local cafés. To provide readers with an accurate picture, your editor has asked you to estimate the average daily coffee consumption (in ounces) sold by these cafés. You have collected a sample data set on the daily coffee consumption from various cafés in the city. Using this data, estimate the average amount of coffee sold per day in local cafés. Use a 99% confidence level for your estimate. Round to the nearest thousand for your answers. Here is the sample data you collected: 320000, 265000, 305000, 330000, 300000, 240000, 280000, 330000, 295000, 300000, 290000, 335000, 255000, 310000, 310000, 310000, 245000, 315000, 355000, 285000, 325000, 305000, 295000, 295000, 360000, 325000, 310000, 345000, 315000, 270000, 255000, 350000, 295000, 320000, 265000, 320000, 290000, 310000, 340000, 280000, 240000, 340000, 300000, 295000, 320000, 300000, 295000, 285000, 255000, 300000, 250000, 275000, 310000, 290000, 340000, 275000, 310000, 305000, 275000, 285000, 290000, 270000, 300000, 260000, 320000, 315000, 275000, 350000, 265000, 285000, 300000, 235000, 335000, 305000, 285000 Left bound = [leftbound] Right bound = [rightbound]
Read DetailsYou are a data analyst working for an entertainment magazine…
You are a data analyst working for an entertainment magazine in Paris, France. The magazine is planning a special feature on the theater scene in Paris, highlighting the monthly ticket sales of various theaters. To provide readers with an accurate picture, your editor has asked you to estimate the average monthly ticket sales. You have collected a sample data set on the number of tickets sold monthly by different theaters in the city. Using this data, estimate the average number of tickets sold per month in local theaters. Use a 99% confidence level for your estimate.Specify your answer rounded to the nearest integer. Here is the sample data you collected: 2100, 2200, 2300, 2500, 2400, 2350, 2450, 2250, 2150, 2550, 2600, 2700, 2500, 2400, 2350, 2550, 2600, 2750 Left bound = [leftbound]Right bound = [rightbound]
Read DetailsYou are tasked with forecasting the next monthly sales value…
You are tasked with forecasting the next monthly sales value using an ARIMA(3,1,2) model based on the following information: The last 4 months of actual sales data (in units) are: 300, 320, 315, and 330. The errors (residuals) from the previous two months’ forecasts are 5 and -7, respectively. The ARIMA(3,1,2) model has the following parameters: ϕ1=0.6 ϕ2=0.3 ϕ3=−0.2 θ1=0.8 θ2=0.5 Assume there is no constant (μ=0) in the model. Using this information, calculate the forecast for the next month.
Read DetailsYou are a data analyst working for a popular lifestyle magaz…
You are a data analyst working for a popular lifestyle magazine in Seattle, Washington. The magazine is planning a special feature on the coffee culture in Seattle, highlighting the daily coffee consumption in local cafés. To provide readers with an accurate picture, your editor has asked you to estimate the average daily coffee consumption (in ounces) sold by these cafés. You have collected a sample data set on the daily coffee consumption from various cafés in the city. Using this data, estimate the average amount of coffee sold per day in local cafés. Use a 99% confidence level for your estimate. Specify your answer rounded to the nearest integer. Here is the sample data you collected: 295000, 300000, 285000, 320000, 290000, 310000, 315000, 280000, 305000, 300000, 295000, 310000, 300000, 285000, 275000 Left bound = [leftbound]Right bound = [rightbound]
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