A random sample of 30 households was selected from a particular neighborhood. The number of cars for each household is shown below.

3. A random sample of 30 households was selected from a particular neighborhood. The number of cars for each household is shown below. Estimate the mean number of cars per household for the population of households in the neighborhood. Give the 95% confidence interval.2 0 1 2 3 2 1 0 1 4 1 3 2 0 1 1 2 3 1 2 1 0 2 0 3 2 2 1 0 2