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A business analyst in the Washington, D.C. area looked at the following Christmas 2016 and 2017 toy sales in Metro D.C. Six toy stores were were contacted and shared the following information where x is 2016 sales and y represents 2017
x (in dollars) y (in dollars)
10,000 11,500
5000 4500
7500 8500
12,500 13,000
8500 8300
5500 4800
a. Find an equation of the least squares regression line with the slope and y-intercept rounded to 2 decimal places
b. Using (a) with a 2016 December holiday sales of $6000, what is the predicted 2017 December holiday sales?
c. for a 2016 sales number of $25,000, the 2017 December prediction would be?
d. What would be your guess for 2018 Christmas sales with everything we talked about in our class?
Calculate each of the following ?(round each answer to one decimal place?).
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GPAs Thirty GPAs from a randomly selected sample of statistics students at Oxnard College are available at this text's website.
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