Data Collection

If a parameter is derived from a census

then a statistic is derived from a _____________

• population
• sample

Any information could be considered data. When does this data show meaning?

• Data is meaningful only when it is stored.
• Data is always meaningful.

• Data needs context to show meaning.

• Data shows meaning if is on a table.

You want to investigate insect types. To collect data you name them A, B, C ... What do we call this kind of data?

• Nominal data
• Interval data

You have 399 students at a university and collect their weight in Kg to make a histogram. What kind of data would you expect to receive?

• continuous (ratios or intervals)

• Categorical (Nominal or ordinal)

Data from our survey is meaningful to us. It, however, may have no meaning to other people. Why is this?

• The data is only relevant to our organization.
• This data fits into our context of study.

How can we define team work.

• It is a professional skill.

• It is to make life easy and let people do the hard parts for you.

How could we describe a professional ?

• Meets deadlines reliably

• Ignores deadlines because he/she is busy