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3. [49.09 Points] DETAILS BBBASICSTATSACC B.1.D18.MI. MY NOTES ASK YOUR TEACHER What price do farmers get for their watermelon crops? In the third week of July, a random sample of 43 farming regions gave a sample mean of I = $6.83 per 1 00 pounds of Watermelon. Assume that 0' is known to be $1.96 per 100 pounds. (a) Find a 90% confidence interval for the population mean price {per 100 pounds) that farmers in this region get for their watermelon crop {in dollars}. What is the margin of error (in dollars}? (For each answer, enter a number. Round your answers to two decimal places.) lower limit it: upperumn :3 margin of error 3|:| (b) Find the sample size necessary for a 90% condence level with maximal error of estimate E = 0.25 for the mean price per 100 pounds of watermelon. (Enter a number. Round up to the nearest whole number.) farming regions (c) A farm brings 15 tons of watermelon to market. Find a 90% condence Interval for the population mean cash 1iralue of this crop {In dollars). What Is the margin of error (In dollars)? Hint: 1 ton Is 2000 pounds. (For each answer, enter a number. Round your answers to two decimal places.) lower limit H: upperllmlt *l:| margin of error 3 |:| Submit