Define Null Hypothesis, Confidence intervals, Type-I and Type-II errors
Null Hypothesis
The Hypothesis was formulated for rejection under the assumption that it is true. Null Hypothesis is denoted by Ho .
Confidence Interval
A confidence interval is the mean of your estimate plus and minus the variation in that estimate.
Type-I and Type-II Errors
Type-I:- Rejection of Null hypothesis when it is True.
Type-II:- Failing to Reject a Null hypothesis when it is False.