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

http://www.talkstats.com/attachment....1&d=1347515208