STATS Flashcards
represented by Ho, states that there is no difference between a
parameter and a statistic, or that there is no difference between two parameters.
Null hypothesis,
represented by Ha, states the existence of a difference
between a parameter
Alternative hypothesis,
is utilized when hypothesis involves direction.
one-tailed test
is used for a non-directional hypothesis.
A two-tailed test
usually designated by the alpha (α) symbol pertains to the degree of
confidence we require to reject the null hypothesis in favor of the alternative hypothesis.
level of significance,
is the range of values of the test statistic that signifies that there is
a significant difference and that the null hypothesis should be rejected.
critical or rejection region
occurs if you reject the null hypothesis when it is true.
type I error
occurs if you do not reject the null hypothesis when it is false.
type II error
To arrive at a decision, research requires a process known as the
test of
hypothesis.
is defined as a proposed explanation (may or may not be true) for a phenomenon
that can be used as a basis for further verification or investigation.
hypothesis
can only be right-tailed or left-tailed, which leans in the direction of the
inequality of the alternative hypothesis.
one-tailed test
pertains to the degree of
confidence we require to reject the null hypothesis in favor of the alternative hypothesis.
alpha (α) symbol
of
utilizing the probability value p as an index of the weight of evidence against a null hypothesis,
Ronald Fisher’s idea
of testing a null hypothesis against an alternative hypothesis.
Jerzy
Neyman and Egron Pearson’s notion
a hypothesis test is a threshold to which the value of the test statistic
in a sample is compared to determine whether or not the null hypothesis is rejected.
Critical or Tabular Value
