4031SPO

Can you define?

100

What is Primary Data?

Data collected yourself, such as from a survey.

200

What is secondary data

Secondary research, also known as desk research, is a research method that involves compiling existing data sourced from a variety of channels.

300

What is Bias?

Encourages a certain response by the wording of a question, or by selecting a specific group to ensure desired outcome.

400

What is a Sample?

A small selection of a population used when conducting research.

500

A value that a data set tends to be centered around.

Central Tendency - including mean, median and mode

M & M & M

100

What is the Mode?

The value that appears the most

200

What is the Median?

The middle value when a set of data is arranged in order

300

The number 5 represents what type of measure when the following numbers are used... 6,5,4,7,4,6,3

Median

400

The sum of the values divided by the number of values in a set

The mean

500

If the numbers 74 and 81 are the two middle values, this number would represent the median

What is 77.5

Statistics

100

A graph can present correlation results is called what?

Scatter graph

200

What is a one-sample t test?

A one sample t test compares the mean of a single group to a known or a hypothesised population.

300

Compares the frequencies of different parts of a data set

What is a bar graph

400

When showing continuous data, as in changing cheeseburger prices, which type of graph would be the most appropriate?

A scatter/line graph

500

What sort of T-test compares the means of the same group at two different times (such as pre and post event)

Paired T test 

Number Cruncher

100

Bell shaped curve

Normal distribution

200

In a survey about music, pop music had a total of 7 votes, dance had a total of 9 votes, rock had a total of 3 votes. What is the total number of participants in the survey?

What is 19

300

If the total participants in a survey is 19, what would the fraction be if pop music had 7 votes.

What is 7/19

400

One sample, independent (two sample) and paired (dependant) are types of what?

T-TEST

500

Used to compare the means of two groups to determine statistical significance.

T-TEST

DATA

100

What measures the amount of variation of values from the mean?

Standard deviation 

200

Correlation co-effiecient between what two values

-1 to 1 

300

Skewness

Distribution is asymmetrical with values more spread out on one side of the mean than the other

400

If P<0.05 what does this mean?

This means the data is statistically significant

500

Fill in the gap...

The                           states that there is no difference between the means of the groups being compared. If a t-test shows a significant result, we reject this hypothesis.

Null hypothesis