A Random Sample of 100 Employees from 5 Different Companies

question 24

Essay

A random sample of 100 employees from 5 different companies was randomly selected, and the number whotake public transportation to work was recorded. The results are listed below. Perform a homogeneity ofproportions test to test the claim that the proportion who take public transportation to work is the same in all 5companies. Use α = 0.01. $\begin{array} { l | c c c c c } &{ \text { Companies } } \\\hline & 1 & 2 & 3 & 4 & 5 \\\text { Use Public Trans. } & 18 & 25 & 12 & 33 & 22 \\\text { Don't Use Public Trans. } & 82 & 75 & 88 & 67 & 78\end{array}$

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Definitions:

Partial Report Method

A technique in cognitive psychology where participants are only asked to recall a subset of the stimuli presented, improving recall accuracy.

Sensory Memory

The shortest-term element of memory, which allows individuals to retain impressions of sensory information after the original stimuli have ended.

Sperling's Study

A classic psychological experiment conducted by George Sperling in the 1960s demonstrating the existence of sensory memory by using a grid of letters and a tone signaling which row to recall.

Chunking

A method of organizing information into manageable units or chunks, improving recall in memory.