Use the Following Information to Answer Questions

question 92

Essay

Use the following information to answer Questions
To test the effectiveness of a new drug designed to improve concentration in children with hyperactivity disorder, a researcher divided 100 children with hyperactivity disorder into two groups of 50 children each. First, both groups received a test to determine the length of time they could study a word list before their attention wandered. Then, group 1 received the new drug while group 2 received a sugar pill. One hour later, both groups took the concentration test again.
-Which group is the experimental group and which is the control group?

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Definitions:

Test Statistic

A value calculated from sample data that is used to test a hypothesis in statistics.

Normal

A type of statistical distribution where data is symmetrically distributed around the mean, known as the Gaussian distribution.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the value of an unknown population parameter, with a specified level of confidence.

Population Proportion

The fraction or percentage of a population that exhibits a particular trait or characteristic.