Perform the Indicated Hypothesis Test $$\alpha = 0.01$$

question 51

Essay

Perform the indicated hypothesis test. Be sure to do the following: identify the claim and state the null and alternative
hypotheses. Determine the critical value and rejection region. Calculate the test statistic. Decide to reject or to fail to
reject the null hypothesis and interpret the decision in the context of the original claim. Assume that the samples are
independent and that each population has a normal distribution.
-A statistics teacher believes that the variance of test scores of students in her evening statistics class is lower
than the variance of test scores of students in her day class. The results of an exam, given to the day and
evening students, are shown below. Can the teacher conclude that the scores of evening students have a lower
variance? Use $$\alpha = 0.01$$ $$\begin{array} {cc } \text { Day Students}& \text { Evening Students}\\\mathrm { n } _ { 1 } = 31 & \mathrm { n } _ { 2 } = 41 \\\\\mathrm {~s} _ { 1 } = 9.8 & \mathrm {~s} _ { 2 } = 5.3\end{array}$$

Understand the structure and functions of different types of hair.

Recognize the diagnostic value of hair analysis in detecting substance exposure.

Describe the composition and function of the subcutaneous layer.

Understand the factors influencing baldness and hair color changes.

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Definitions:

Blood Pressure Device

A medical instrument used to measure the pressure of blood in the arteries.

Heart Rhythms

The pattern of beats produced by the heart as it pumps blood through the body, which can be regular or irregular.

Hypertension

A chronic medical condition in which the blood pressure in the arteries is persistently elevated, leading to increased risk of heart disease, stroke, and other health issues.

Electronic Blood Pressure Device

A digital device used to measure blood pressure, providing systolic and diastolic readings electronically.