Which is a guideline for doctors pursuing research with human subjects? the human subject does not need to consent. the experiment can be based on activity that does not necessarily promote a greater good for society. the degree of risk should not be greater than the seriousness of the problem that needs to be solved. subjects should not be able to end the experiment when they choose. the scientist has the right to continue the experiment after determining that harm might result?

Skychefs, inc. prepares in-flight meals for a number of major airlines. one of the company's products is grilled salmon in dill sauce with baby new potatoes and spring vegetables. during the most recent week, the company prepared 4000 of these meals using 960 direct labor hours. the company paid these direct labor workers a total of $19,200 for this work, or $20.00 per hour. according to standard cost card for this meal, it should require 0.25 direct labour-hours at a cost of $19.75 per hour.1. what is the standard labor-hours allowed (sh) to prepare 4,000 meals? 2. what is the standard labor cost allowed (sh x sr) to prepare 4,000 meals? 3. what is the labor spending variance? 4. what is the labor rate variance and the labor efficiency variance?