Interpreting Market Research Flashcards
1
Q
What is a correlation
A
Used to establish the strength between two sets of values
Positive, as A goes up so does B
Negative, as A goes up B goes down
Perfect negative- -1
Perfect positive: 1
No correlation-0
2
Q
What is extrapolation
A
Using previous patterns of numerical data in order to predict values in the future assuming it will continue
3
Q
Strengths of extrapolation
A
- common for past trends in data to continue
- can be used to track past figures
4
Q
Weaknesses of extrapolation
A
- less reliable if fluctuation occurs
- doesn’t take into account changing business environment
- ignore qualitative factors eg fashion amd tastes
- ignores product lifecycle
5
Q
What are confidence levels
A
Probability reserearch findings are correct
6
Q
What are confidence intervals
A
Possible range of outcomes for a given confidence level
7
Q
What are confidence levels and intervals used for
A
To assess reliability of data dependant on sample size and construction