Statistics Solutions

[All Steps] The production department of NDB Electronics wants to explore the relationship between the number of employees who assemble a subassembly and

Question: The production department of NDB Electronics wants to explore the relationship between the number of employees who assemble a subassembly and the number of products produced. As an experiment, two employees were assigned to assemble the subassemblies. They produced 15 during a one-hour period. Then four employees assembled them. They produced 25 during a one-hour period. The complete set of paired observations follows:

Number of Assemblers One-Hour
Production (units)
2 15
4 25
1 10
5 40
3 30

Show calculations on the next page or embed the responses from Excel into this section.

  1. Determine the correlation coefficient.
    Place your answer (only the value) in the box to the right:
  2. Determine the coefficient of determination.
Place your answer (only the value) in the box to the right:

Worksheet for Formula 13-1, Correlation Coefficient

r = \[\sum{{}}\] (X – Xbar) (Y – Ybar)

____________________

(n - 1) s x s y

Xbar = \[\sum{{}}\] X / n

Ybar = \[\sum{{}}\] Y / n

S x = \[\sqrt{{}}\] (X – Xbar) 2 /(n-1)

S y = \[\sqrt{{}}\] (Y – Ybar) 2 /(n-1)

X Y (X – Xbar) (Y – Ybar) (X – Xbar) 2 (Y – Ybar) 2 (X – Xbar)(Y – Ybar)

Price: $2.99
Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


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