307 Diamonds Were Sampled and Randomly Sorted into Three Groups

question 57

Multiple Choice

307 diamonds were sampled and randomly sorted into three groups of diamonds. These diamonds were randomly assigned to one of the three organizations, or groups (HRD, GIA, or IGI) , that
Certify the appraisal of diamonds. A study was conducted to determine if the average size of
Diamonds reported by these three certification groups differ. A completely randomized design was
Used and the resulting ANOVA table is shown below. One-Way AOV for CARAT by CERT
$\begin{array}{llrcrc}\text { Source } & \text { DF } & \text { SS } & \text { MS } & \text { F } & \text { P } \\\hline \text { CERT } & 2 & 8.3265 & 4.16326 & 83.21 & 0.0000 \\\text { Error } & 305 & 15.2604 & 0.05003 & & \\\text { Total } & 307 & 23.5869 & & &\end{array}$

Give a practical conclusion for the test in the words of the problem. Use $\alpha = 0.10$ to make your conclusion.

• A) There is insufficient evidence to indicate that differences exist among the mean carat weights for the three certification groups.
• B) There is sufficient evidence to indicate that the mean carat weight for the HRD group equals the mean carat weight for the IGI group.
• C) There is sufficient evidence to indicate that the mean carat weight for the GIA group is lower than the other two groups.
• D) There is sufficient evidence to indicate that differences exist among the mean carat weights for the three certification groups.

Identify the nine categories of HRM competencies for success.

Recognize the stakeholders in an organization.

Explore methods for HR professionals to enhance their career opportunities.

Understand the basic components of Freud's model of the mind.

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Definitions:

Income-Tax Filers

Individuals or entities that submit a report of their income to a governmental body to assess tax liabilities.

Efficiency Losses

The reduction in economic welfare resulting from distortions in resource allocation or market behavior.

Externalities

Costs or benefits that result from an activity or transaction and affect others who did not choose to incur that cost or benefit.

Demand Elasticities

Measures the responsiveness of demand for a good or service to changes in its price or other factors.