One of the Most Striking Human Accomplishments Is the Achievement

question 17

Essay

One of the most striking human accomplishments is the achievement of intelligible speech by age five. Deficits in speech acquisition often occur when a child has hearing difficulty or does is slow to develop the motor functions associated with speech. Other deficits in speech acquisition are of unknown origin. It has been hypothesized that a family history of speech communication disorder might be a factor in speech delay. The theory is that if members of the family have difficulty communicating, this may increase the probability of a speech deficit in a young family member. A random sample of healthy two-year-olds was followed over the course of a year. At age 3, each child was classified as having a speech delay or not. These data, cross-classified by a family history of speech communication disorder, is given in the table below: ​
a)At the .05 significance level, do the data provide evidence of the hypothesized developmental differences? Provide statistical evidence for your conclusion.
b)Is this an observational or experimental study? Justify your response in a few sentences.

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Definitions:

Organizational Citizenship

The voluntary commitment of employees to go beyond their contractual tasks and contribute positively to the organization's culture and business processes.

Organizational Identification

The psychological connection between an employee and their organization, influencing their sense of belonging and loyalty.

Work Motivation

The internal and external forces that influence an individual’s willingness to perform and engage in their job tasks.

Reward Dissatisfaction

A state of discontent experienced by employees due to perceived unfair compensation, benefits, or recognition in comparison to their efforts or performance.