4. Suppose you're studying levels of job stress and measures of job efficiency in a nursing
home. Your hypothesis is that increasing job stress appears to lead to reduced job efficiency.
In that case, job stress is the variable.
A EESTI
O A. empirical
O B. correlated
O C. independent
O D. dependent

Fresh meats (e.g., pork loin) are a better choice for heart health than processed meats (e.g., pork sausage) because (check all that apply) check all that apply fresh meats are lower in fat than processed meats. fresh meats are lower in fat than processed meats. fresh meats are lower in sodium than processed meats. fresh meats are lower in sodium than processed meats. fresh meats are lower in cholesterol than processed meats. fresh meats are lower in cholesterol than processed meats. fresh meats are higher in fiber than processed meats.

An obese man 5'5 and 200 pounds, seta a long-term goal to loose 50 pounds which of these is a resonable benchmark he might set for himself

[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.