Question 4 Tries remaining: 1 Marked out of 9.00 Flag question At a particular university, students' grades in introduct

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Question 4 Tries Remaining 1 Marked Out Of 9 00 Flag Question At A Particular University Students Grades In Introduct 1 (30.69 KiB) Viewed 9 times

Question 4 Tries remaining: 1 Marked out of 9.00 Flag question At a particular university, students' grades in introductory statistic classes are generally unimodal and skewed to the left with a mean of μ = 67% and a standard deviation of a = 15.4%. (Round your answers to 4 decimal places, if needed.) (a) The distribution of students' grades is approximately normal + (b) If n = 33 students are selected at random, the distribution of the sample mean grade is approximately normal and a standard deviation of (c) The probability that the sample mean grade for these 33 students is less than 72% is (d) If n = 33 students are selected at random, the distribution of the sample total grade is approximately normal and a standard deviation of (e) The probability that the total grade for these 33 students is less than 2376 is Check with a mean of with a mean of