a study investigates the relationship between average weekly rainfall and the resulting plant growth by collecting data for 10 weeks. the data was then analyzed by spss to produce the following output. is there evidence that the two variables are independent? from the following options, choose all the correct statements with regard to a significance test using this output. question 8 options: hypotheses. the value of the test statistic is 29.421. the relevant t-distribution has 8 degrees of freedom. the test's p-value is nearly zero because the test statistic is so large. at a 1% significance level, the null hypothesis is rejected. there is evidence that the two variables are not independent.