For goodness of fit test using Chisquare test, Expected frequency = Total number of observations * theoretical probability specified or Expected frequency = Total number of observations / Number of categories if theoretical frequencies are not given. For contingency tables (test for independence) Expected frequency = (Row total * Column total) / Grand total for each cell
Chi-square is a statistic used to assess the degree of the relationship and degree of association between two nominal variables
uses of wais -r
Both are parametric test. The t-test uses a test statistic that is related to the sample mean(s) and is used to compare that with the mean of another sample or some population. The F-test uses a test statistic that is related to the sample variance and is used to compare that with the variance of another sample or some population. Both tests require identical independently distributed random variables. This ensures that the relevant test statistics are approximately normally distributed.
When testing the sums of squares of variables which are independently identically distributed as normal variables. One of the main uses of the F-test is for testing for the significance of the Analysis of Variance (ANOVA) or of covariance.
For goodness of fit test using Chisquare test, Expected frequency = Total number of observations * theoretical probability specified or Expected frequency = Total number of observations / Number of categories if theoretical frequencies are not given. For contingency tables (test for independence) Expected frequency = (Row total * Column total) / Grand total for each cell
Chi-square is a statistic used to assess the degree of the relationship and degree of association between two nominal variables
to put microorganism in to test.
Weber test
Sprouts uses a swab test for their California locations, but uses a urine test for the other locations.
used to chemical test
To hold test tubes. LOL
To hold your test tubes in, or to keep them upright.
Rorschach Test
park test is when you know the zed that you want to use, and white test is when you can't decide which park test to use. The park test uses t values, whereas the white test uses chi squares values
is a home drug test the same test probation uses
hair test