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2. [40.22 Points] DETAILS BBUNDERSTAT12 6.5.006.MI.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Suppose x has a distribution with a mean of 70 and a standard deviation of 20. Random samples of size n: 64 are drawn. USE SALT (a) Describe the :rdistribution and compute the mean and standard deviation of the distribution. ; has distribution with mean pi; = \\:| and standard deviation a:r = :l . lb] Find the zvalue corresponding to 1: 72.5. {c} Find Ft?\" 72.5). (Round your answer to four decimal places.) (d) Would it be unusual for a random sample of size 64 from the X distribution to have a sample mean less than 72.5? Explain. 0 Yes, it would be unusual because less than 5% ct all such samples have means less than 72.5. 0 Yes, it would be unusual because more than 5% of all such samples have means less than 72.5. 0 No. it would not be unusual because less than 5% of all such samples have means less than ?2.5. O No, it would not be unusual because more than 5% of all such samples have means less than ?2 .5. Need Help