We Have Calculated a 95% Confidence Interval and Would Prefer

question 59

Multiple Choice

We have calculated a 95% confidence interval and would prefer for our next confidence interval to have a smaller margin of error without losing any confidence. In order to do this, we can
I. change the z* value to a smaller number. II. take a larger sample.
III. take a smaller sample.

• A) III only
• B) I and II
• C) I and III
• D) II only
• E) I only

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Definitions:

Environmental Pollutants

Substances introduced into the environment that can cause harm or discomfort to organisms, including humans.

Sickle-cell Gene

A genetic variant that affects the shape of red blood cells, causing them to assume a sickle shape, which can lead to various health complications.

Malaria

A mosquito-borne infectious disease affecting humans and other animals caused by Plasmodium parasites, characterized by fever, vomiting, and other flu-like symptoms.

Dairying

The practice of keeping and breeding dairy cattle for milk production.