Suppose μ = 50 and σ² = 100 for a Population

question 87

True/False

Suppose μ = 50 and σ² = 100 for a population. In a sample where n = 100 is randomly taken, 90% of all possible sample means will fall between 49 and 51.

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Definitions:

Control

In experimental design, the standard to which comparisons are made in an experiment, often an untreated group or the current standard treatment.

Blinding

A trial design technique where one or more parties involved (e.g., participant, investigator) are unaware of which participants are in the control group versus the experimental group to prevent bias.

Text Messages

Short electronic messages sent over a cell phone network from one mobile phone to another.

Control Group

In an experiment, a group of subjects that does not receive the experimental treatment and is used as a baseline to compare the effects of the treatment.