Is taking care of a bonsai tree good for elderly people? Researchers examine the effect of perceived control on health complaints of geriatric patients in a nursing home. Twenty-nine patients are selected to participate in the study. Using random assignment, half are given a plant to care for and half are given a plant but the care is conducted by the staff. Numbers of health complaints are recorded for each patient over the following seven days. Do the data indicate that the patients who cared for the plants have fewer health complaints than the patients who had staff care for their plants? Test at alpha = .05. Here's the data: Cares for Plant Staff Cares for Plant n1=15 n2=14 Mean1 = 16.6 Mean2 =27.07 SS1 = 910.2 SS2 =778.7 Is the problem asking for a one- or two-tail hypothesis test? (write one or two) Blank 1 What are the Degrees of Freedom? Blank 2 What is the critical value of t? Include the sign: , -, /- Blank 3 What is the pooled variance? round to 2 decimal places. Blank 4 What is the independent variable? Blank 5 What is the dependent variable? Blank 6 What is the standard error