Test a Hypothesis Regarding Three or More Means Using One $\alpha = 0.01$

question 35

Multiple Choice

Test a Hypothesis Regarding Three or More Means Using One -Way ANOVA
-A certain HMO is attempting to show the benefits of managed care to an insurance company. The HMO believes that certain types of doctors are more cost-effective than others. One theory is that Certification Level is an important factor in measuring the cost-effectiveness of physicians. To investigate this, the HMO obtained independent random samples of 20 physicians from each of the three certification levels -- Board certified (C) ; Uncertified, board eligible (E) ; and Uncertified, board ineligible (I) -- and recorded the total per member per month charges for each (a total of 60 physicians) . In order to compare the mean charges for the three groups, the data will be subjected to an analysis of variance. The results of the ANOVA are summarized in the following table. Take $\alpha = 0.01$ . Interpret the $\mathrm { P }$ -value of the ANOVA F test.

• A) The means of the total per member per month charges for the three groups of physicians differ at \(\alpha = 0.01\).
• B) The model is not statistically useful (at \(\alpha = 0.01\) ) for prediction purposes.
• C) The variances of the total per number per month charges for the three groups of physicians differ at \(\alpha = 0.01 .\)
• D) The means of the total per member per month charges for the three groups of physicians are equal at \(\alpha = 0.01\).

Learn about the criteria for determining essential and nonessential genes within minimal genomes.

Understand the role of transposons in gene expression disruption and genome evolution.

Comprehend the variations in genome size and gene content among different organisms and their biological implications.

Recognize the importance of bioinformatics and high-throughput sequencing in modern genetics research.

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Definitions:

Developing Countries

Nations with a lower living standard, underdeveloped industrial base, and low Human Development Index (HDI) relative to other countries.

Pollution Impact

The adverse effects on the environment and living organisms due to contaminants introduced by human and natural actions.

Premature Deaths

Deaths that occur before the average age of death in a certain population.

Malnutrition

A condition stemming from insufficient, excessive, or imbalanced consumption of nutrients, leading to physical health problems.