[Solved] A consumer magazine has contacted a simple random sample of 33 owners of a certain model of a certain model of automobile and asked each owner
Question:
A consumer magazine has contacted a simple random sample of 33 owners of a certain model of a certain model of automobile and asked each owner how many defects had to be corrected within the first 2 months of ownership. The average number of defects was
= 3.7, with a standard deviation of 1.8 defects.
- Use the t distribution to construct a 95% confidence interval for μ = the average number of defects for this model.
- Use the z distribution to construct a 95% confidence interval for μ = the average number of defects for this model.
Deliverable: Word Document 
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