# PS9 - Question 1 1 points Save In the population the scores...

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Question 1 1 points Save In the population, the scores of students on the ACT college entrance exam had mean μ = 22 and standard deviation σ = 6. The distribution of scores is roughly normal. A SRS of 80 students who took the exam is taken. Round the standard deviation of the sample mean score x_bar to four decimal places. Using that rounded number, what is probability that the mean score x_bar of these students is 22.5 or higher (rounded to four decimal places )? (Remember to express your answer as a proportion.) Question 2 1 points Save In the population, the scores of students on the SAT college entrance exam had mean μ = 1200 and standard deviation σ = 80. The distribution of scores is roughly normal. A SRS of 60 students who took the exam is taken. Round the standard deviation of the sample mean score x_bar to four decimal places. Using that rounded number, what is probability that the mean score x_bar of these students is between 1190 and 1210 (rounded to four decimal places

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PS9 - Question 1 1 points Save In the population the scores...

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