sem 2 session 3 intro to key statistical concepts Flashcards
1
Q
truth vs observation
A
truth = average value
observation - what you actually see (may be numbers around the average)
2
Q
what is a hypothesis
A
statement about the underlying truth and take observed data
carry out a statistical test to accept or reject
3
Q
if confidence interval contains 1
A
then its data is NOT statistically significant
4
Q
what does the p value mean
A
probability of getting an observation as extreme as, or more extreme than the one observed if the hypothesis is true
5
Q
if P value is < 0.05
A
REJECT null hypothesis and statistically significant
6
Q
problems with p values and hypothesis testing
A
although easy to interprate
they are arbitary and can change with sample size
7
Q
confidence interval
A
