HW 8 Practice for the Final Exam: Problem 17 Previous Problem Problem List Next Problem (1 point) Cans of regular Coke are labeled as containing 12 oz. Statistics students weighed a sample of 10 randomly chosen cans, and found the sample mean weight to be 12.04 oz. Assume that cans of Coke are filled so that the actual amounts are normally distributed with a mean of 12.00 oz and a population standard deviation of 0.1 oz. (a) Find the standard error of the sampling distribution. Round your answer to 4 decimal places. Answer: (b) Find the probability that a sample of 10 cans will have a sample mean amount of at least 12.04 oz. Round your answer to 4 decimal places. Answer:HW 8 Practice for the Final Exam: Problem 22 Previous Problem Problem List Next Problem (1 point) A manufacturer of detergent claims that the contents of boxes sold weigh on average at least 30 ounces. The distribution of weights is known to be normal with standard deviation 0.7. A random sample of 27 boxes yielded an average weight of 30.3 ounces. Suppose an inspector wants to test the null hypothesis that the population mean weight is at least 30 ounces. That is, test the null hypothesis Ho : H = 30 against the alternative hypothesis Ha : M