Question

3.Both F and Chi Square distributions can be used to compare multiple sample means T/F

4.For Chi Square tests, all tests discussed can be used for both experiments and surveys T/F

Answer 1

3) A chi-square test tests a null hypothesis about the relationship between two variables. And chi square for goodness of fit check weather given data fits on existing distribution or not

And f test is used when comparing statistical models that have been fitted to a data set, in order to identify the model that best fits the population from which the data were sampled.

Test of equality of means is done by f test. Hence given statement is false.

4) Survey refers to a technique of collecting information regarding a variable under study, from the respondents of the population. Experiment implies a scientific procedure to test hypothesis.

Chi square test goodness of fit is used to decide whether there is any difference between the observed (experimental) value and the expected (theoretical) value. That is for experimental procedure.

Chi square independent test is used in survey to test independence of variables.for example relationship between educational level and marital status.

Hence given statement is true.

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