Bob Nale is the owner of Nale's Texaco GasTown. Bob would like to estimate the mean number of litres {L} of gasoline sold to his customers. Assume the number of litres sold follows the normal distribution with a standard deviation of 8 L. From his records, he selects a random sample of 13 sales and nds the mean number of litres sold is 41. a. What is the point estimate of the population mean? {Round the final answer to the nearest whole number.) The point estimate of the population mean is |:| litres. b. Develop a 95% confidence interval for the population mean. {Round the final answers to 3 decimal places.) The 95% confidence interval for the population mean is between |:| and |:| . c. Interpret the meaning of part [b]. If 100 such intervals were determined, the population (Click to select] v would be included in about |:| intervals