A population of values has a normal distribution with μ = 131.4 and σ = 57.2. You intend to draw a random sample of size n = 154. What is the mean of the distribution of sample means? Hz: What is the standard deviation of the distribution of sample means? (Report answer accurate to 2 decimal places.) 01

Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed with a mean of 236 feet and a standard deviation of 44 feet. We randomly sample 49 fly balls. Part (a) If  X =average distance in feet for 49 fly balls, then give the distribution of  X.  Round your standard deviation to two decimal places. X  ____, ________,_______  ~   . Part (b) What is the probability that the 49 balls traveled an average of less than 226 feet? (Round your answer to four decimal places.)Sketch the graph. Scale the horizontal axis for  X.  Shade the region corresponding to the probability.         Part (c) Find the 70th percentile of the distribution of the average of 49 fly balls. (Round your answer to two decimal places.) ft †

Pls help ASAP ASAP.

A normal distribution  with a mean of 2mm and a standard deviation of 0.05mm a randomly generated number of 0.71 , need to calculate the standardised Z value, from my notes Z = (actual value - mean)/standard deviation. do i take the randomly generated number of 0.81 as the actual value ?