A-Suppose that a population is being studied that has a known standard deviation of 35. Further suppose a sample of size 75 is taken, resulting in a sample mean of 350. Determine the Point Estimate of the mean. Round all calculations to two (2) decimal places.

B-Suppose that a population is known to have a mean of 10.5 and a standard deviation of 0.5. What is the probability that a random sample will have a mean of 9.3 or more? Express your answer with four decimal points.

C-Suppose that a population is being studied that has a known standard deviation of 88. Further suppose a sample of size 130 is taken, resulting in a sample mean of 440. Determine the Point Estimate and the Margin of Error for a 90% Confidence Interval for this sample. Round all calculations to two (2) decimal places.