1) (5 points) A random sample of no measurements was selected from a population with unknown mean up and standard deviation go, Calculate a 95% confidence interval for up for each of the following situations: (a) n=27, x =59.9, s=3.51 SUS (b) n=28, x =57.1, s=3.32 SUS (c) n=19, x =15.4, s=3.55 SUS (d) n=15, x =91.3, s=3.3 SUS 2) (5 points) In an old study, the weight of a certain breed of pig had a standard deviation of 5 pounds. What sample size should be used to estimate the mean weight of that breed of pig for a new study? Assume a margin of error of 0.7 pounds and a confidence level of 99% is desired. n= 3) (5 points) The weight of all cans of coffee has a standard deviation of 0.78 ounces. A sample of 57 cans of coffee is taken and x was found to be 6.494. What is the point estimate for u? What is ox