ex2.11An sample has a mean of 49 and a standard deviation of 6.6. (a) Find the z-score for each value of x = 54. (Give your answer correct to two decimal places.) (b) Find the z-score for each value of x = 62. (Give your answer correct to two decimal places.) (c) (a) Find the z-score for each value of x = 47. (Give your answer correct to two decimal places.) (d) (a) Find the z-score for each value of x = 41. (Give your answer correct to two decimal places.)