Question: STAT 100 Exercise WORKBOOK TWO DR. FAN, 2025 1. A population has mean u = 10 and standard deviation O = 8. A sample of

STAT 100 Exercise WORKBOOK TWO DR. FAN, 2025 1. A population has mean u = 10 and standard deviation O = 8. A sample of size 50 is drawn. (a) Find the probability that X-bar is greater than 11. n = 50 7 11 M = 10 and a= 8 8 = 0.14 V 50 (b) Will it be unusual for x-bar to be less than 8? Hint: An event is called unusual if its probability is below 0.05

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