A manufacturing company glues one part to another part during the assembly of its final product. Either too much or too little glue presents a problem. It is important for the pressure of the glue nozzle (pounds per square inch) to be set correctly because it affects the amount of glue (ounces) that is applied. Ten applications are sampled and the following information collected: SSXX  = 129.6            SSYY = 2.345             SSXY = 16.6   X bar = 25.2     Y bar = 2.05 What is the estimated y intercept?

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A manufacturing company glues one part to another part during the assembly of its final product. Either too much or too little glue presents a problem. It is important for the pressure of the glue nozzle (pounds per square inch) to be set correctly because it affects the amount of glue (ounces) that is applied. Ten applications are sampled and the following information collected:

SSXX  = 129.6            SSYY = 2.345             SSXY = 16.6   X bar = 25.2     Y bar = 2.05

  1. What is the estimated y intercept?
Expert Solution
Part 1

Obtain the estimated value of y intercept.

The estimated value of the y intercept is obtained as shown below:

From the information, given that

Statistics homework question answer, step 1, image 1

Statistics homework question answer, step 1, image 2

The value of slope estimate is obtained below:

Statistics homework question answer, step 1, image 3

The value of slope estimate is 0.1281

 

 

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