PSY 4930 Chapter Notes - Chapter 11: Type I And Type Ii Errors, Null Hypothesis, Test Statistic
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Nearly all statistic tests have certain assumptions that underlie their use. Chapter 11: t(ea) for two t-tests assume that the amount of variability in each group is equal. Plug in the values into the formula (cid:887). (cid:886)(cid:885) (cid:887). (cid:887)(cid:885) (cid:1872)= [(cid:885)(cid:885)(cid:891). (cid:884)(cid:882)+(cid:883)(cid:884)(cid:885). (cid:882)(cid:888) (cid:887)(cid:890: determine the value needed for rejection of the null hypothesis using the appropriate table of critical values for the statistic (use table b. 2 in the appendix b, compare the obtained value and the critical value. Value that approximates the sample seize of number of individual cells in an experimental design. Remember, it"s a measure of how different 2 groups are from one another.
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