#### MS 150 Statistics Spring 2001 Quickie Quiz Six

- What is the shape of the above curve?

- For normally distributed data, what is the probability that the data will be between the
mean minus one standard deviation and the mean plus one standard deviation?

- For normally distributed data, what is the probability that the data will be more than
one standard deviation above the mean?

- For a test with normally distributed scores and a mean m of
47 and a standard deviation s of 11, what is the probability a
given score will be between 36 and 58?

- Assume that the arrival times of customers at Dolokei-Palipoa sakau market on a Friday
evening are normally distributed with a mean m of 7:00 P.M. and
a population standard deviation s of 30 minutes. What
percentage of customers have arrived by 7:00 P.M. or earlier?

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