If 100 independent hypothesis tests are conducted using a ...

[vicky]

If 100 independent hypothesis tests are conducted using a significance level of 0.10, and if all of the null hypotheses are true, what is the expected number of false positives (type I errors)?
 a. 0
  b. 5
  c. 10
  d. There is not enough information to say.

Question 2

Choosing beforehand to conduct a two-sided alternative will make it __________to detect a real difference in one single direction (choose: harder, easier, just as hard or easy).
 Fill in the blank(s) with correct word

[Viet Thy]

Answer to Question 1

C

Answer to Question 2

HARDER

[vicky]

TYSM

[samiel-sayed]

Excellent