Choose the One Alternative That Best Completes the Statement or Answers

question 4

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-The cell phone conversations of a random sample of 50 students has a standard deviation of 9.7 minutes. Find the margin of error, E, using a 90% confidence interval.

• A) 2.26
• B) 0.32
• C) 1.37
• D) 1.23

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Definitions:

Physical Exercise

Activities requiring physical effort, carried out to sustain or improve health and fitness.

Hygiene Practices

Activities and routines aimed at promoting health and preventing disease through cleanliness, such as handwashing, dental care, and bathing.

Childbirth Classes

Educational sessions for pregnant individuals and their partners to prepare them for labor, delivery, and early parenthood, often including breathing and relaxation techniques.

Birthing Process

The series of physiological and physical events that lead to the delivery of a baby.