Ratio frequency inventory tags

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Reference no: EM131802022

National Scan, Inc., sells ratio frequency inventory tags. Monthly sales for a 6-month period were as follows:

Month:	Sales
Feb	23
Mar	35
Apr	31
May	37
Jun	56
Jul	51

Disregard the demand pattern of the given time series, You are asked to use the time series to derive a trend equation. In order to derive the trend equation is F_t = a + bt, you have to compute several components to compute the values for the variables a and b. Answer the following questions pertaining to information that are relevant to deriving the trend equation.

a) The Sty =

b) The Sy =

c) The value for the b (slope of the trend line) = (in 3 decimal places)

d) The value for the a (intercept of the trend line) = (in 3 decimal places)

Reference no: EM131802022

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