Perform the Indicated Hypothesis Test Test the Claim That Walking and Blood Pressure Are Independent

question 81

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. 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.
-A researcher is interested in determining if there is a relationship between exercise and blood pressure for
adults over 50. A random sample of 236 adults over 50 is selected and the results are given below. $$\begin{array}{l}\begin{array} { l | c c c } &\text { Blood Pressure }\\& \text { Low } & \text { Moderate } & \text { High } \\\text { Exercise } & & & \\\hline \text { Walkers } & 35 & 62 & 25 \\\text { Non-walkers } & 21 & 65 & 28\end{array}\end{array}$$ Test the claim that walking and blood pressure are independent. Use $$\alpha = 0.01$$

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Definitions:

Phospholipid

A type of lipid molecule that is a major component of cell membranes, made up of two fatty acids, a phosphate group, and a glycerol backbone.

Protein

Large, complex molecules made up of amino acids that perform a vast array of functions including structural, enzymatic, and regulatory roles in cells.

Hypotonic Solution

A solution that has a lower concentration of solutes relative to another solution, causing cells to swell as water moves inside them.

Hypertonic Solution

A solution that has a higher solute concentration compared to another solution, which can lead to the movement of water out of a cell.