Timed Questions! Need in 30 Minutes! MGSC 6100 Information Analysis
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?
Yes, this is the order of the number of fatalities in the data
Yes, but only in the year data was collected
No, we should be comparing rates such as the number of deaths per thousand workers
No, accuracy of government statistics cannot be trusted
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)
(iii)
Question 4
Below are annual income histograms (in $1,000s) for three different groups of people.(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.
(i) , is the SD smaller, larger, or about the same as that in histogram (iii) ?
smaller
larger
about the same
