3. Determine the sample size (nfor the estimate of for the following.
- E = 2.3, ? = 15.40, confidence level = 99%. Round to the nearest whole number.
- E = 4.1, ? = 23.45, confidence level = 95%. Round to the nearest whole number.
- E = 25.9, ? = 122.25, confidence level = 90%. Round to the nearest whole number.





