### Confidence Interval for Mean and Proportion..

See attached file. Please show the formula and step used to solve these two problems. 3. A random sample of 10 parking meters in downtown Nashville showed the following incomes for a day. $2.60, $1.05, $2.45, $2.90, $1.30, $3.10, $2.35, $2.00, $2.40, $2.35 Find the 95% confidence interval of the true mean. 6. Out