two quick questions

[Tonychet2]

1.  if the IQR of a set of data is 10 and ur Q1 is 22, would 7 be an outlier? or is it only less than 7?.. EDIT: sorry i mean if the IQR is 10

2. actual figure is seasonalised figure right?

[billyjackson768]

15=Q3-Q1
15=Q3-22
37=Q3

So we have Q1 and Q3 then to determine if something is an outlier we look at if it lies outside the interval Q1 - 1.5 * IQR ≤ x (your value tested) ≤ Q3 + 1.5 * IQR
22 - 1.5 * 15 ≤ 7 ≤ 37 + 1.5 * 15
-0.5 ≤ 7 ≤ 59.5
This is true as 7 is within those bounds. So it is not an outlier.

[Stick]

1. Lower fence = Q1-1.5*IQR
=22-1.5*15
=-0.5

Hence, 7 is an outlier.

I think what you meant is if a value falls on the lower or upper fence. In that case, that number is not considered an outlier.

2. Actual value is seasonalised value.

[billyjackson768]

1. Lower fence = Q1-1.5*IQR
=22-1.5*15
=-0.5

Hence, 7 is an outlier.

I think what you meant is if a value falls on the lower or upper fence. In that case, that number is not considered an outlier.

2. Actual value is seasonalised value.

-0.5 is the lower bound and 7 is not lower than that and is not higher than the upper bounds so it isn't an outlier?

[Stick]

Yep, that's right.

[Tonychet2]

i meant if the IQR is 10 guys not 15 sry

[StumbleBum]

i meant if the IQR is 10 guys not 15 sry

In that case refer to this:

I think what you meant is if a value falls on the lower or upper fence. In that case, that number is not considered an outlier.

If the value is equal to the value of the lower or upper fence, then it is NOT considered an outlier. In this case both the fence and the value are 7, so therefore it isn't an outlier.