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Southpaws and $p$-Values

APSTAT-N3NXKL

People who are left-handed are sometimes referred to as “southpaws”. According to some reports $10\%$ of people are left-handed, but Billy doesn't believe this is true and decides to do a study. He randomly selects $130$ people and finds that $20$ of them are left-handed.

What is the $p$-value for the appropriate significance test?

A

$0.02$

B

$0.04$

C

$0.1$

D

$0.15$

E

We cannot conduct a significance test because conditions for doing so are not satisfied in this situation.