Biostatistics Exam 1 2012

Test

1-

Monday February 3,2Ot4

Following the instructions for each problem and when necessary show os much work os necessary to justify your answers. Point values are listed next to each problem.
1. The Centers

for Disease Control and Prevention (CDC) lists causes of death in the United States during

2003:

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it reasonable to conclude that heart or respiratory disease were the cause of approximately 33% of

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U.s. deaths in 2003? Yes or No and briefly explain. (5

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b. What percent of deaths were from causes not listed here? | lRts)

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n appropriate graphical display for these data. (10 pts)

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distribution of average length of stay can best be described as

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3. Using the Stem and Leaf display above, find the Median and Mode of the data. (5 pts)

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4. How hot does it get in Death Valley? The following data are taken from a study conducted by the
National Park System, of which Death Valley is a unit. The ground temperatures (oF) were taken from
May to November in the vicinity of Furnace Creek.

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Calculate the mean for these data. (4 pts)

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rinAthe median value for these data. (a pts)

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mode of these data (if there is no mode then state "No Mode Exists"). {2 pts}

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