Find a 95% Confidence Interval for the Difference Between the Proportions

question 161

Essay

Find a 95% confidence interval for the difference between the proportions of people who prefer cola versus root beer where $\hat { p } _ { \text {cola } }$
= .21, $\hat { p } _ { \text {root beer } }$
= .12,n_cola = 200,n_{root beer} = 150.

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Definitions:

Risk For Suffocation

The potential danger of experiencing a lack of air or inability to breathe, typically due to obstruction of airways or being in a confined space.

Caregiver Role Strain

Stress and burden experienced by a person providing care for a chronically ill, disabled, or aging family member or friend.

Unattended Swimming Pool

A swimming pool without supervision, posing a significant risk of drowning, especially to children.

Risk For Infection

The potential vulnerability of an individual or population to acquiring infections due to various factors such as immune status, exposure, or existing health conditions.