points A simple random sample of 30 homeowners was selected and the number of bags of leaves produced was recorded for each. The mean number of bags of leaves produced by this sample of 30 homeowners was 25.2 bags with a standard deviation of 8.1 bags; the distribution was relatively symmetric and had no outliers. If appropriate, use this information to calculate and interpret a 90% confidence interval for the mean number of bags of leaves produced by all homeowners