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1. The time it takes to eat lunch is normally distributed with a mean of 11...

1. The time it takes to eat lunch is normally distributed with a mean of 11 minutes and a standard deviation of 3 minutes. On average how many people from a sample of 50 would take more than 14 minutes to eat lunch?
2. A data set has is skewed right with a mean of 200 and a standard deviation of 80. I take 4500 samples of size 10 from this data set. Then the sampling distribution of sample means would have

a) A mean of what? __________

b) A standard deviation of what? ______________

c) What shape distribution? ____________

Math   Statistics-And-Probability   
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