Hypothesis

Sample est: —→ Inference —> population parameters

4 balls            2 balls

0                        50%

0                            0

o                            o

o

(O just white and 0 black lines inside circle)



Null H: usually no relationship

Alternative H: The patterns we expect (??)

x axis

y axis


what we conclude:






Type one error:

Making a false positive (HA) claim (while the truth is negative) (Ho)

P- value is the probability of type one error



We reject the Null H, when p-value is small enough

(0.05) we fail to reject the null

reject the null h when p value is larger than the threshold



Null Hypothesis:

(there is no relationship)(??)

Opinion on capital punishment is not associated with whether the person lives in the south

Alternative hypothesis is associated..

→ Deviation from the null H( hypothesis)


1237 × 0.6

7422