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Q1. Students of a large university spend an average of $12 a day on lunch. The standard deviation of the expenditure is $3. A simple
Q1. Students of a large university spend an average of $12 a day on lunch. The standard deviation of the expenditure is $3. A simple random sample of 36 students is taken.
- What are the expected value, standard deviation, and shape of the sampling distribution of the sample mean?
- What is the probability that the sample mean will be less than $11.00?
- What is the probability that the sample mean will be greater than $12.50?
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Essentials Of Discrete Mathematics
Authors: David J Hunter
2nd Edition
1449604447, 9781449604448
