Researchers built a model to explore the relationship between a possum's total body length (in cm) and their skull width (in mm). They collected data from 104 possums in Australia and New Guinea. Using a 5% significance level, the researchers should: Group of answer choices reject the null hypothesis, because the observed slope is greater than the significance level fail to reject the null hypothesis, because the p-value is less than the significance level reject the null hypothesis, because the p-value is less than the significance level fail to reject the null hypothesis, because the observed slope is greater than the significance level accept the null hypothesis, because the observed slope is greater than the significance level accept the null hypothesis, because the p-value is less than the significance level