Question: There is an average of 22.455 employees at 22 office furniture dealers in a major metropolitan area with a standard deviation of 18.52. Construct a 99% confidence interval for the true mean number of full-time employees at office furniture dealers.

1. [11.014 33.896]
2. [11.277 33.633]
3. [12.284 32.626]
4. [12.513 32.397]
5. [20.072 24.838]

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