A Company Reports That 80% of Its Employees Participate in the Companyʹs

question 105

Essay

A company reports that 80% of its employees participate in the companyʹs stock purchase
plan. A random sample of 50 employees was asked the question, ʺDo you participate in
the stock purchase plan?ʺ The answers are shown below. $\begin{array} { l l l l l l l l l l } \text { yes no } & \text { no } & \text { yes } & \text { no } & \text { no } & \text { yes } & \text { yes } & \text { no } & \text { no } \\ \text { no } & \text { yes } & \text { yes } & \text { yes } & \text { no } & \text { yes } & \text { no } & \text { no } & \text { yes } & \text { yes } \\ \text { no } & \text { yes } & \text { yes } & \text { no } & \text { yes } & \text { yes } & \text { no } & \text { yes } & \text { yes } & \text { yes } \\ \text { yes } & \text { no } & \text { no } & \text { yes } & \text { yes } & \text { yes } & \text { yes } & \text { yes } & \text { no } & \text { yes } \\ \text { no } & \text { yes } & \text { yes } & \text { no } & \text { yes } & \text { yes } & \text { yes } & \text { yes } & \text { yes } & \text { yes } \end{array}$
Perform the appropriate test of hypothesis to investigate your suspicion that fewer than $80 \%$ of the company's employees participate in the plan. Use $\alpha = .05$ .

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Definitions:

Paralanguage

All the vocal aspects of speech other than words, including loudness, pitch, speed of speaking, pauses, sighs, laughter, and so on.

Paralinguistic Signals

Non-verbal cues used in communication that accompany speech, such as tone of voice, pitch, speed, and pauses, which can affect the interpretation of the message.

Verbal Cues

Elements in spoken language, such as tone, pace, and volume, that convey meaning beyond the words themselves.

Summon-Answer Sequence

A communicative pattern where a call by one party requires a response from another, fundamental in conversational structure.