A Random Sample of 50 Employees of a Large Company

question 47

Essay

A random sample of 50 employees of a large company was asked the question, "Do you participate in the company's stock purchase plan?" The answers are shown below. yes no no yes no no yes yes no no $$\begin{array} { l l l l l l l l l l } \text { yes } & \text { no } & \text { no } & \text { yes } & \text { no } & \text { no } & \text { yes } & \text { yes } & \text { no } & \text { no } \\\text { no } & \text { yes } & \text { yes } & \text { yes } & \text { no } & \text { yes } & \text { no } & \text { no } & \text { yes } & \text { yes } \\\text { no } & \text { yes } & \text { yes } & \text { no } & \text { yes } & \text { yes } & \text { no } & \text { yes } & \text { yes } & \text { yes } \\\text { yes } & \text { no } & \text { no } & \text { yes } & \text { yes } & \text { yes } & \text { yes } & \text { yes } & \text { no } & \text { yes } \\\text { no } & \text { yes } & \text { yes } & \text { no } & \text { yes } & \text { yes } & \text { yes } & \text { yes } & \text { yes } & \text { yes }\end{array}$$ Use a 90% confidence interval to estimate the proportion of employees who participate in the company's stock purchase plan.

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Definitions:

Intolerance

The unwillingness to accept views, beliefs, or behavior that differ from one's own.

Central Tendency

A statistical measure that identifies a single value as representative of an entire distribution of values, commonly used values include the mean, median, and mode.

Extreme Scores

Statistical outliers or data points that are significantly higher or lower than the majority of scores in a data set.

Placebo Effects

Changes in a patient's condition attributed to the belief in the effectiveness of an inert treatment or procedure.