Question

The Obama administration's Clean Power Plan called for: a. reductions in carbon dioxide emissions from newly constructed power plants only. b. reductions in carbon dioxide emissions from existing power plants. c. uniform reductions in every state, regardless of differences across states. d. closing all coal-fired power plants by the year 2030.

Which of the following is a TRUE statement? a. Control variables used in cross-sectional regression analysis typically remove all bias. b. Attrition of volunteers in randomized trials rarely occurs. c. Randomized trials are typically expensive. d. Randomized trials do not yield reliable results.

Answer 1

* --The correct answer is option C

uniform reductions in every state, regardless of differences across states.

The Obama administration's Clean Power Plan called for uniform reductions in every state, regardless of differences across states. President Obama announced the plan in a speech that Each state was assigned an individual goal for reducing carbon emissions on August 3 2015. The plan was made to reduce carbon emissions by 32% by 2030.The Clean Power Plan, announced by President Obama aiming to protect our health and environment..

*-- The correct answer is option C

Randomized trials are typically expensive.

Randomized trials can be very expensive to run. They can take many years to complete.

It converts research data into clinical practices

So randomized trials are expensive is true and rest of the options are not true.

Randomized trials are qunatitative studies which has unclear hypotheses and expensive.

Thankyou....