This tells us about the parameter If your assumption is shown to be wrong H1
Conditions for binomial
Fixed trials Two outcomes
Fixed probability
Trials are independent
Critical regions
Closest value to significance level. Region where we would reject
Independent probability formula
P(AnB)=P(A) x P(B)
Less than significance level
Reject H0
More than significance level
Accept H0
Mutually exclusive
They both cannot happen at the same time
Mutually exclusive how to find P(AuB)
P(A)+P(B)
Mutually exclusive P(AnB)
Equals 0
Null hypothesis
The hypothesis you assume to be correct H0
One tailed mean
Increase or decreases
Test statistic
Results from the experiment Eg the number of heads obtained
Two tailed test
Change in either direction
When to use binomial cd
When it is less than or equal to
When to use binomial pd
When it is equals P(X=x)
P(A')
Not A
P(A'nB)
Not A and B
P(AnB)
A and B
P(A)
A
P(AuB')
A or not B
P(AuB)
A or B
What is a hypothesis test
A hypothesis test is a statistical test that is used to determine that is used to determine whether there is enough evidence in a sample of data to infer that a certain condition is true for the entire population
What is a critical value
A critical value is the point (or points) on the scale of the test statistic beyond which we reject the null hypothesis.
What does pmcc measure
The product moment correlation coefficient measures the type and strength of linear correlation between two variables.