>Am doing multiple regression with excel.
>Looking at Height, Weight, and BMI on the age of an event.
>R^2 is fine
>Overall significance (F) is <0.05
>Height, and Weight are not statistically significant at 0.05, but BMI is.
>Re-run with just BMI... (F) is not statistcally significant.
I know sometimes the cumulative effect of things not significant can affect the overall significance, but here Height and Weight are literally the only determinants of BMI. (A)Is all my data trash, (B) am I just retarded, or (C) yes.
I have looked at the following videos on youtube
https://www.youtube.com/watch?v=zoAEkmbW4ak
https://www.youtube.com/watch?v=f5XK86J8CQY
t. no stats background