need help on B.

M Inbox (6,858) - salvadormoncada x 6 SYM-506 Gradebook X Question 7 - Topic 4 Assignment X + X C A & https://ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fnewcon.. A Q . . . Topic 4 Assignment Saved Help Save & Exit Submit Check my work 7 Exercise 9-7 (Algo) (LO9-1, LO9-2) 1.66 Bob Nale is the owner of Nale's Quick Fill. Bob would like to estimate the mean number of gallons of gasoline sold to his customers. points Assume the number of gallons sold follows the normal distribution with a population standard deviation of 1.80 gallons. From his records, he selects a random sample of 80 sales and finds the mean number of gallons sold is 6.70. (Use t Distribution Table & z Distribution Table.) Required: Book a. What is the point estimate of the population mean? (Round your answer to 2 decimal places.) References Point estimate 6.70 + b. Develop a 95% confidence Interval for the population mean. (Round z-score and your answers to 2 decimal places.) Confidence interval and ED MS Hill 56F 19 a W 9:42 PM Mostly clear 11/2/2022 5