Suppose That for a Sample of 65 Observations from a Population

question 29

Multiple Choice

Suppose that for a sample of 65 observations from a population of 500,the sample mean is 25.6 and the sample standard deviation is 2.8.Create a 90% confidence interval for the population mean.

• A)25.6 ± 0.318
• B)25.6 ± 0.415
• C)25.6 ± 0.467
• D)25.6 ± 0.533

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Definitions:

Heart Disease

A category of diseases affecting the heart and blood vessels, often involving issues like coronary artery disease, heart rhythm problems, and heart defects.

Neurotransmitter

Chemical substances in the brain that transmit signals from one neuron to another, influencing various functions such as mood, sleep, and cognition.

Hormone

Chemical substances produced in the body that regulate and control the activity of certain cells or organs.

Dopamine

A neurotransmitter in the brain that is involved in pleasure, motivation, and reward mechanisms.