A taster claims she can tell brand A from brand B. She is given independent blind trials, each with two cups. Under the null hypothesis she is guessing:
so the number of correct calls follows .
She gets 9 of the 10 trials right. The lab uses a strict significance level of .
Useful values: , , , and .
What is the exact upper-tail p-value for this result, and what is the decision at ?
Select all that apply.