Sample Size $= 256$ , Sample Mean $= 40$ , Sample Standard Deviation

question 51

Multiple Choice

Sample size $= 256$ , sample mean $= 40$ , sample standard deviation $= 13$
What is the $95 \%$ confidence interval for the population mean?

• A) \(39.2 < \mu < 40.8\)
• B) \(38.4 < \mu < 41.6\)
• C) \(39.9 < \mu < 40.1\)
• D) \(8 < \mu < 18\)

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Definitions:

Positive Event

An occurrence or experience that is beneficial, enjoyable, or favorable, contributing to a person's happiness or well-being.

Major Life Stressors

Significant events or changes in one's life that require a considerable adjustment, potentially causing stress or impact on mental and physical health.

Fight-or-Flight Response

A physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival, initiating the body's acute stress response.

Tend-and-Befriend Response

A behavior in response to stress involving seeking social affiliation and nurturing activities, more commonly observed in females.