(b) Find the z value corresponding to x = 57. (Enter an exact number.) N = (c) Find P(x <57). (Enter a number. Round your answer to four decimal places.) P(x < 57) = (d) Would it be unusual for a random sample of size 36 from the x distribution to have a sample mean less than 57? Explain. No, it would not be unusual because less than 5% of all such samples have means less than 57. O No, it would not be unusual because more than 5% of all such samples have means less than 57. O Yes, it would be unusual because less than 5% of all such samples have means less than 57. Yes, it would be unusual because more than 5% of all such samples have means less than 57. d Help? Read It Talk to a Tutor