Which of the Following Is an Age-Related Change That May

question 19

Multiple Choice

Which of the following is an age-related change that may require an adaptation of personal hygiene?

• A) Strengthening of the periodontal membrane
• B) Increased bony structure of the mouth
• C) Increased saliva production
• D) Weaker jaw muscles

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Definitions:

Null Hypothesis

A statement for a statistical test that proposes there is no effect or no difference, serving as the default assumption to test against.

Alternative Hypothesis

A statistical hypothesis that contradicts the null hypothesis, suggesting there is an effect or a difference.

One-tailed Test

A statistical test where the region of rejection is on only one side of the sampling distribution.

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis; it is a threshold used to determine the critical region for statistical significance testing.