Monday, January 31, 2011,10:43 PM
→ Statistical Tests @ NR0902_Subgroup02
Upon colleting the data, we were told to choose a statistical test so that will facilitate us in plotting of the data. Our research question is to obtain whether if there is relationship between person’s oral temperature and axilla temperature. We need to consider some factors like choosing the correct type of data such as nominal, ordinal or scale.
Next, we intend to measure the central tendency. The 3 types of central tendency is mode, median and mean. Before choosing whether to take mean or median as the typical variables, we had to look at the graph whether it is normally distributed or skewed.
In order to describe correlation, direction and strength needs to be considered. Direction is categorising as positive and negative correlation. For positive correlation, it was mention that as one variable increases, the corresponding score on the other variables increases and vice versa. Whereas, for negative correlation, as the score of variables decrease, the corresponding score on the other variables decrease. The strength determines the relationship between variables and range from 0 to 1.
After much consideration, we have decided to use Pearson’s R for our topic as our data is measured in scale and the topic we are doing is asking for relationship between the 2 variables.
comment ? | 0 comment(s)