Statistics Solutions

[All Steps] A machine produces 3-inch nails. A sample of 12 nails was selected and their lengths determined. The results are as follows: Data 2.97 2.86

Question: A machine produces 3-inch nails. A sample of 12 nails was selected and their lengths determined. The results are as follows:

Data
2.97
2.86
2.82
2.86
2.95
2.80
2.81
2.98
2.88
2.83
2.95
2.95

Assuming that = 0.01, test the hypothesis that the population mean is equal to 3.

State the null and alternate hypotheses

Calculate the mean and standard deviation

Determine which test statistic applies, and calculate it

Determine the critical value(s).

State your decision: Should the null hypothesis be rejected?

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


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