THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 106

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A sales representative has 398 accounts.From a random sample of 56 of these accounts,she found that the average yearly order was $1,239 with a standard deviation of $73,and that 27 had placed an order within the last 30 days.
-Estimate the proportion of all accounts that placed an order within the last 30 days.

---

Definitions:

Autonomic Nervous System

A division of the peripheral nervous system that regulates involuntary functions such as heart rate, digestion, and respiratory rate.

Somatic Nervous System

Part of the peripheral nervous system that handles voluntary control of body movements through the control of skeletal muscles.

Limbic System

A complex system of nerves and networks in the brain, involving several areas near the edge of the cortex concerned with instinct and mood. It controls the basic emotions (fear, pleasure, anger) and drives (hunger, sex, dominance, care of offspring).

Endocrine System

A network of glands in the body that produces and secretes hormones directly into the bloodstream to regulate the body's growth, metabolism, and sexual development and function.