A Study Was Conducted to Investigate the Effect of an Intervention

question 43

Multiple Choice

A study was conducted to investigate the effect of an intervention protocol on IQ tests.Nine randomly selected students were tested. $$\begin{array} { l c } \text { Before } & \text { After } \\100 & 106 \\111 & 112 \\93 & 95 \\92 & 90 \\99 & 107 \\85 & 100 \\117 & 126 \\110 & 105 \\98 & 110\end{array}$$
Calculate T^- and T⁺

• A)44,1
• B)38.5,6.5
• C)45.5,2.5
• D)32.5,12.5

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Definitions:

Pollution

Pollution is the introduction of harmful substances or products into the environment, negatively impacting the planet's ecosystems and human health.

Market System

An economic system where decisions about production, investment, and distribution are based on supply and demand, and prices of goods and services are determined in a free price system.

Command-and-control

A type of regulation where the government sets specific limits for pollution emissions and may also mandate specific pollution control technologies.

Incentive-based Regulations

Regulatory methods designed to encourage businesses to improve their environmental performance through rewards or penalties.