Question: Hello . Can you please help me solve this question? Scores on a certain assessment test had a mean of 280 and a standard deviation

Hello . Can you please help me solve this question?

Scores on a certain assessment test had ameanof 280 and astandard deviationof 31.5. A random sample of 49 students taking this test is selected.

(a)Identify themeanandstandard deviationof thesample meanscore

(b)Find the probability that thesample meanscore isat least289

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