A Sample Statistic and Margin of Error Are Given $90 \%$

question 226

Multiple Choice

A sample statistic and margin of error are given. Find the confidence interval likely to contain the population parameterof interest and answer the question.
-The CEO of a company claims that $90 \%$ of its employees have very high job satisfaction. A poll of the company's employees revealed that 87 percent had very high job satisfaction with a margin of error of $4.6$ percentage points. Can we conclude that the CEO was lying?

• A) \(82.4 \%\) to \(87 \%\); yes
• B) \(87 \%\) to \(91.6 \%\); no
• C) \(82.4 \%\) to \(91.6 \%\); no
• D) \(84.7 \%\) to \(89.3 \%\); yes

Understand the impact of structural and reproductive adaptations on plant diversity and evolution.

Identify the structures characteristic of vascular plants and their significance.

Explain the concept of heterospory and its evolutionary advantages.

Understand how environmental changes, like increased CO2 levels, can affect plant physiology and morphology.

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Definitions:

Purpose

The reason for which something is done or created or for which something exists.

Sampling Error

The difference between a sample statistic used to estimate a population parameter and the actual but unknown value of the parameter.

Generalizability

The extent to which findings from a study can be applied to larger populations or different contexts beyond the original study conditions.

Statistic

A numerical value that describes a sample characteristic, obtained from data analysis.