HELP WITH QUESTION 19. Please answer all parts and show work if possible

The test statistic ist= (Round to two decimal places as needed.) The critical value(s) is(are) to = (Round to two decimal places as needed. Use a comma to separate answers as needed.) Since the test statistic is the rejection region, the null hypothesis. There statistically significant evidence to support the claim.Test the claim below about the mean of the differences for a population of paired data at the level of significance a. Assume the samples are random and dependent, and the populations are normally distributed. Claim: Hd 0 OB. Ho: Ha 0 Ha: Hd # 0