A Statistics Professor Has Just Given the Final Examination in His

question 78

Essay

A statistics professor has just given the final examination in his introductory statistics course. In particular, he is interested in learning how his class of 50 students performed on this exam. The data are shown below.
-(A) Using these 50 students as the frame, use Excel to generate a simple random sample of size 10 from this frame.
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(B) Compute the mean scores in the frame and the simple random sample you generated in (A).
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(C) Compare the mean scores you computed in (B). Is your simple random sample a good representative of the frame? Why or why not?
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(D) Using these 50 students as the frame, use Excel to generate a systematic sample of size 10 from this frame.
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(E) Compare the mean scores in the frame with that in the systematic sample in (D). What do you conclude?

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Definitions:

Learning Theorists

Scholars who study how individuals acquire new knowledge, skills, attitudes, or values through various forms of training or experience.

Neurotransmitter Release

The process by which neurotransmitters are released from nerve endings or synapses into the synaptic cleft to transmit signals between neurons.

Dishabituation

The revival of a response that has been habituated, typically due to a novel stimulus interrupting the repetition.

Sensitization

An increased reaction to a stimulus following repeated exposure, typically in response to something negative or harmful.