Marketing Research Difference of Goodness of Fit Test Questions

1. There are 3 chi-square tests – The goodness of fit test, the test of independence, and the test for homogeneity. What’s the difference among the three? Why would you use one over another?2. There are one-sampled and two-sampled t-tests and BOTH can be either one-tailed or two-tailed.  When is a t-test one-tailed? When is it two-tailed?  Can you give me examples for both?