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(Solved): Please Help. I Really Forgot How To Solve This Problem!!! Im Struggled Right Now. I Know This Proces ...

please help. i really forgot how to solve this problem!!! im struggled right now. I know this process but I don’t know how to get answer
p[86911-22 1 - 14 9.1-9.3 - PIZ< 1.1 70 - P[Z< -1.52121
p[86911-22 1 - 14 9.1-9.3 - PIZ< 1.1 70 - P[Z< -1.52121

Expert Answer


Solution: From given ,= 9.3 and= 1.1 n = 70 Letbe the sample mean, The sampling distribution of theis approximately normal with mean = and
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