Suppose Nine Items Are Randomly Sampled from a Normally Distributed

question 87

Multiple Choice

Suppose nine items are randomly sampled from a normally distributed population with a mean of 100 and a standard deviation of 20.The nine randomly sampled values are: Calculate the probability of getting a sample mean that is smaller than the sample mean for these nine sampled values.

• A)0.1411
• B)0.1612
• C)0.1512
• D)0.2266

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