Question 1 (1 point) Which of the following statements is/are true? 1. In order to conduct a t-test on the difference in means both sample sizes must be under 30. 2. A dependent means problem involves conducting a test of significance for populations of minors (those under the age of 18) as they are dependents. O A) Statement 1 only 0 B) Neither of the two statements 0 C) Statement 1 and 2 O D) Statement 2 only Previous Page Next Page Page 1 Of 11 Question 5 (1 point) A study was conducted to determine the efficacy of Captopril (a medicine intended to treat kidney problems caused by diabetes) in reducing a urinary protein: A random sample of 10 patients with kidney complications of diabetes was selected, and their urinary protein was measured (for each patient) both before and after the drug therapy. The average difference (or d = before after) in urinary protein was calculated to be 0.837 g/24hr, with a standard deviation of 0.81 g/24hr. If the test statistic was calculated to be 3.27, at 10% level of significance, is there evidence that the drug is effective in reducing urinary protein? 0 A) At 10% level of significance, there is significant evidence to show Captopril is not effective in reducing urinary protein. 0 B) At 10% level of significance, there is significant evidence to show Captopril is effective in increasing urinary protein. 0 C) I need more information to answer this. 0 D) At 10% level of significance, there is no significant evidence to show Captopril is effective in reducing urinary protein. 0 E) At 10% level of significance, there is significant evidence to show Captopril is effective in reducing urinary protein. Question 2 (1 point) If you calculated a 95% confidence interval for a difference in two means of (-0.793, -0.315), could you conclude that a significant difference exists? 0 A) Yes, since the confidence interval does not contain 0 O B) I need to conduct a formal test of significance to answer this. 0 C) Yes, since the confidence interval contains 0 O D) No, since the confidence interval does not contain positive values 0 E) No, since the confidence interval contains negative values Previous Page Next Page Page 2 Of 1 1