H webassignhet You may need to use the appropriate table in Appendix A to answer this question.

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H webassignhet You may need to use the appropriate table in Appendix A to answer this question. 3. [0/1.66 Points] PREVIOUS ANSWERS ASK YOUR TEACHER The scores of individual students on the American College Testing (ACI') composite college entrance examination have a normal distribution with mean 19.4 and standard deviation 6.2. (a) What is the probability that a single student randomly chosen from all those taking the test scores 23 or higher? 4.223 x (b) Now take an SRS of 57 students who took the test. What are the mean and standard deviation of the average (sample mean) score for the 57 students? (Round the standard deviation to 3 decimal places). k >

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H webassignhet You may need to use the appropriate table in Appendix A to answer this question.

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