ales from her lemonade stand as a pie chart, tracking how much she sells each day to track the overall trend. Explain why this plan will not work and what she could use instead.
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Gretchen is proposing to present the sales from her lemonade stand as a pie chart, tracking how much she sells each day to track the overall trend. Explain why this plan will not work and what she could use instead.
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- Regression line. A large midwestern retailer has developed a graph that summarizes the effect of advertising expenditures on sales volume. Using the graph, determine an equation of the form y = a + bx that describes this relationship.What type of analytics seeks to recognize what is going on as well as the likely forecast and make decisions to achieve the best performance possible? domain predictive prescriptive descriptive What does the robustness of a data mining method refer to? its ability to construct a prediction model efficiently given a large amount of data its speed of computation and computational costs in using the mode its ability to overcome noisy data to make somewhat accurate predictions its ability to predict the outcome of a previously unknown data set accuratelyThe demand for Krispee Crunchies, a favorite breakfast cereal of people born in the 1940s, is experiencing a decline. The company wants to monitor demand for this product closely as it nears the end of its life cycle. The following table shows the actual sales history for January–October. Generate forecasts for November–December, using the trend projection with regression method. Looking at the accuracy of its forecasts over the history file, as well as the other statistics provided, how confident are you in these forecasts for November–December? Month Sales Month Sales January Februray March April May June 890,000 800,000 825,000 840,000 730,000 780,000 July August September October November December 710,000 730,000 680,000 670,000