n-1 - ANS-Degrees of Freedom
- ANS-t-value
z= (x- μ) ÷ (σ √(n) - ANS-z test formula
an event can change if another event already occurred
Probability B | Probability A / Probability A - ANS-Conditional Probability
numerical summary of a population - ANS-Parameter
a number that describes a sample - ANS-Statistic
ho, which is our known hypothesis - ANS-null hypothesis
The hypothesis that's accepted if our null hypothesis is rejected - ANS-Alternate Hypothesis
(Ha)
- ANS-Formula for Sample size
X - N( μ, σ ÷ √n) - ANS-Central Limit Theorem
- ANS-margin of error
68-95-99.7 - ANS-Emperical Rule
y = a +bx - ANS-regression line
average, sum of all numbers divided by the amount of numbers there are - ANS-mean
the square root of the variance - ANS-standard deviation
S^2+(x1-X)^2 + (X2 - X)^2... - ANS-Variance
P-value < a - ANS-Accepting the null hypothesis
P value >a - ANS-reject a hypothesis
At a x% level of significance, evidence is or is not sufficient to reject/or not reject Ho -
ANS-Summary of Results