# Timed Questions! Need in 30 Minutes! MGSC 6100 Information Analysis

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Question description

### Question 1

Yahoo Travel's "best beaches" online poll finds that 67% of their several thousand respondents say that a beach is the most likely place they would visit when taking a leisure trip. Does this mean that beaches are the most popular destinations for leisure travelers?

 Yes, 67% is a large majority of the respondents No, 67% is not a large enough majority of respondents Yes, several thousand people responded to the question, so this is a large sample No, the sample is biased because the respondents are most likely to be those people who prefer to go to a beach to begin with

### Question 2

Government statistics for on-the-job fatalities in 2005 show that there were 1,033 on-the-job deaths of construction workers, as well as 1,388 transportation workers, 312 police and fire-fighters, 282 factory workers, and 630 management and executive-level workers. Does this mean management and executive jobs may be safer than construction jobs, and more dangerous than fighting fires or working in a factory?

### Question 3

Below are annual income histograms (in \$1,000s) for three different groups of people.

In which histogram is the average less than the median?

a. (i)

b.(ii)

c.(iii)

### Question 4

Below are annual income histograms (in \$1,000s) for three different groups of people.

In histogram (i), is the median closest to 90, 100, or 120?

90

100

120

### Question 5

Below are annual income histograms (in \$1,000s) for three different groups of people.

In histogram (i), is the SD smaller, larger, or about the same as that in histogram (iii)?

smaller

larger

graph01.jpg
2.jpg

Carnegie Mellon University

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