In Order to Compare the Means of Two Populations, Independent

question 59

Essay

In order to compare the means of two populations, independent random samples of 144 observations are selected from each population with the following results. $\begin{array} { l l } \text {Sample 1}&\text {Sample 2}\\\bar { x } _ { 1 } = 7,123 & \bar { x } _ { 2 } = 6,957 \\s _ { 1 } = 175 & s _ { 2 } = 225\end{array}$ Use a 95% confidence interval to estimate the difference between the population means (μ1 - μ2). Interpret the confidence interval.

---

Definitions:

Sensory Information

Data received by the brain from the senses, including sight, hearing, smell, taste, and touch, which is then interpreted to understand the environment.

Neurons

Cells in the nervous system that are responsible for receiving sensory input from the external world, transmitting motor commands to muscles, and for the thought and reasoning processes.

Hydrocephalus

A condition in which an accumulation of cerebrospinal fluid occurs within the brain, potentially leading to increased intracranial pressure, brain damage, and cognitive problems.

Interneurons

Neurons that transmit impulses between other neurons, especially as part of a reflex arc.