ch7

Question 1

whats null testing

Answer 1

H0

its a hypothesis that you assume to be correct ex. P=0.5

Question 2

whats alternative hypothesis

Answer 2

H1
it tells you about the parameter if your assumption is shown to be wrong

Question 3

what is test statistic and an example

Answer 3

it’s the statistic calculated from a sample taken from the population

ex. let X be the test statistic.
X= the number of sixes achieved from a sample of 60 throws of the dice

Question 4

what’s a critical region

Answer 4

it’s a region of the probability distribution which, if the test statistic falls within it, would cause you to reject the null hypothesis