From graph usually it is hard to verify accurately if distribution is normal or not. It is better to perform a statistic test to verify it. Example: Kolmogorov-Smirnov Test indicates that GLUCF is not normally distributed at p=0.05 sig level:
Hi
The question is: (data was given for gender and speed)
Produce an appropriate graph to determine if it is reasonable to assume that the speeds,for each gender, can be modelled by a normal distribution. Comment on what your graphs suggest.
So I draw a graph(I think is appropriate for this question)- normal distribution
Now, I need to make a comment based on the graph.
Can I say: since most data are within the 95% interval line, the data is normally distributed???
Please help
From graph usually it is hard to verify accurately if distribution is normal or not. It is better to perform a statistic test to verify it. Example: Kolmogorov-Smirnov Test indicates that GLUCF is not normally distributed at p=0.05 sig level: