kathryn4joy
Answered

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The following table represents the annual sales of a bakery for the last 7 years since the grand opening

The Following Table Represents The Annual Sales Of A Bakery For The Last 7 Years Since The Grand Opening class=

Sagot :

MrRoyal

The table is a linear regression model, and the equation of the regression model is y = 0.24x + 0.77

The scatter plot that represents the table

See attachment for the required scatter plot

The best model of the scatter plot

From the attached scatter plot, we can see that the points are almost on a straight line

Hence, the best model that fits the scatter plot is a linear model

The equation of the regression model

Using a graphing calculator, we have the following calculation summary:

  • Sum of x = 28
  • Sum of y = 12.1
  • Mean X = 4
  • Mean Y = 1.7286
  • Sum of squares (SSX) = 28
  • Sum of products (SP) = 6.7
  • b = SP/SSX = 6.7/28 = 0.23929
  • a = MY - bMX = 1.73 - (0.24*4) = 0.77143

The regression equation is represented as:

y = bx + a

So, we have:

y = 0.23929x + 0.77143

Approximate

y = 0.24x + 0.77

Hence, the equation of the regression model is y = 0.24x + 0.77

Read more about regression models at:

https://brainly.com/question/13345245

#SPJ1

View image MrRoyal
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