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[See Solution] A company hires workers to paint ceramic figurines. A new method was proposed to increase the number of figurines painted. The table below

Question: A company hires workers to paint ceramic figurines. A new method was proposed to increase the number of figurines painted.

The table below gives the number of figurines painted in a day by a simple random sample of workers before and after the new method was instituted.

Subject
# 		Figurines
painted each
day using old
method 		Figurines
painted each
day using new
method
1 30 29
2 28 30
3 31 32
4 26 30
5 20 16
6 30 25
7 34 31
8 15 18
9 28 33
10 20 25
11 20 32
12 29 28
13 31 34
14 29 32
15 34 32
16 20 27
17 26 28
18 25 29
19 31 32
20 29 32
  1. What is the 95% confidence interval for the mean increase in the number of figurines painted in a day by each worker?
  2. Based on the 95% confidence interval found in part (A), is a mean increase of 3 figurines per day by each worker a significant improvement? Explain your reasoning.
  3. Management claims that the new method has increased the production by each worker. Conduct an hypothesis test to determine if the claim is valid.

Price: $2.99
Solution: The downloadable solution consists of 4 pages
Deliverable: Word Document


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