If none of the 133 foods actually have an effect on the gend

If none of the 133 foods actually have an effect on the gender of a conceived child, how many (if any) of the individual tests would you expect to show a significant result just by random chance? Boy vs girls I want to know about boys

Solution

There is 133 foods available but none has effect on gender of conceived child. Now we want a test to show a significant result just by random chance.

(Boy vs girls I want to know about boys)

suppose we want to test,

H0: boys has significant effect vs H1: Not H0

then we draw sample from the population that to get the the information on whether food has effect on boy.

But in acctually there is no sample shows an effect of food on boys. Hence the null Hypothesis H0 is trivially rejected, Because of there is no such information available to support H0. So there is NO TESTS so that test shows a significant result just by random chance.