A city is evaluating a proposal to build a parking lot. Data on the number of parked cars per day was collected for 30 days. For the proposal to be approved the city council needs to have evidence that the average number of cars parked in parking lots per day is more than 570. From the sample, the average number of cars parked per day was calculated to be 590.33 with a standard deviation of 52.062. A statistical analysis is done based on the collected data. Use this information to answer questions 1-8.