Suppose x has a distribution with a mean of 90 and a standard deviation of 15....

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Suppose x has a distribution with a mean of 90 and a standard deviation of 15. Random samples of size n = 36 are drawn. USE SALT (a) Describe the x distribution and compute the mean and standard deviation of the distribution. has Select... distribution with mean (b) Find the z value corresponding to x = 85. (c) Find P(x <85). (Round your answer to four decimal places.) P(x < <85)- and standard deviation a (d) Would it be unusual for a random sample of size 36 from the x distribution to have a sample mean less than 857 Explain. O Yes, it would be unusual because less than 5% of all such samples have means less than 85. O No, it would not be unusual because more than 5% of all such samples have means less than 85. O Yes, it would be unusual because more than 5% of all such samples have means less than 85. No, it would not be unusual because less than 5% of all such samples have means less than 85. Suppose x has a distribution with a mean of 90 and a standard deviation of 15. Random samples of size n = 36 are drawn. USE SALT (a) Describe the x distribution and compute the mean and standard deviation of the distribution. has Select... distribution with mean (b) Find the z value corresponding to x = 85. (c) Find P(x <85). (Round your answer to four decimal places.) P(x < <85)- and standard deviation a (d) Would it be unusual for a random sample of size 36 from the x distribution to have a sample mean less than 857 Explain. O Yes, it would be unusual because less than 5% of all such samples have means less than 85. O No, it would not be unusual because more than 5% of all such samples have means less than 85. O Yes, it would be unusual because more than 5% of all such samples have means less than 85. No, it would not be unusual because less than 5% of all such samples have means less than 85.