Binomial: Test For Significance Flashcards
What is the first stage in answering a binomial significance question?
Define the statistic
What is the second stage in answering a binomial significance question?
State the hypothesis and let p =
What is the third stage in answering a binomial significance question?
Testing the result
What is the first stage in answering a binomial significance question?
write a conclusion
What are the first statements to make when defining the statistic?
X = number of …
e.g. X = number of days with no trace of rain
let p be the probability of…
What is the second statement to make when defining the test statistic?
X~B(n,p)
What is n
Sample size e.g. number of people or days
What is p?
The given probability for H0
What will the question claim about p?
That it is incorrect
What is H0?
Null hypothesis (what the question is suggesting is wrong)
What is H1?
In a 1-tailed test how can p be written?
As p > … or p < …
In a 2-tailed test how can p be written?
p ≠ …
If the test statistic is ‘weird small’ find…
p ( x ≤ … )
If the test statistic is ‘weird big’ find…
p ( x ≥ … )
= 1 -p ( x ≤ …-1 )
When testing the result how is the significance level found?
Using the calculator combination
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In a 1-tailed test what significance level is ‘weird’ less than?
The significance level given in the question
In a 2-tailed test what significance level is the ‘weird’ less than…
½ the significance level given in the question
When writing a conclusion what is the first statement?
Compare to the significance level
When writing a conclusion what is the second statement?
Reject or fail to reject H0
When do you reject H0?
When the value is in the critical region
When do you fail to reject H0?
When the value is outside the critical region
What is the final statement in a conclusion?
Context statement
What is the calculator combination to calculate the probability?
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