Determine Whether the Samples Are Independent or Dependent Use a Significance Level of 0

question 54

Essay

Determine whether the samples are independent or dependent.
-A researcher wishes to determine whether the blood pressure of vegetarians is, on average, lower than the
blood pressure of nonvegetarians. Independent simple random samples of 85 vegetarians and 75
nonvegetarians yielded the following sample statistics for systolic blood pressure: $$\begin{array} { | l l | } \hline \text { Vegetarians } & \text { Nonvegetarians } \\\mathrm { n } _ { 1 } = 85 & \overline { \mathrm { n } _ { 2 } } = 75 \\\overline { \mathrm { x } _ { 1 } } = 124.1 \mathrm { mmHg } & \mathrm { x } _ { 2 } = 138.7 \mathrm { mmHg } \\\mathrm { s } _ { 1 } = 38.7 \mathrm { mmHg } & \mathrm { s } _ { 2 } = 39.2 \mathrm { mmHg } \\\hline\end{array}$$ Use a significance level of 0.01 to test the claim that the mean systolic blood pressure of vegetarians is lower
than the mean systolic blood pressure of nonvegetarians. Use the P-value method of hypothesis testing.

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Definitions:

Boundaryless Organizations

Companies that remove traditional barriers between departments as well as barriers between the organization and the external environment.

Internal Boundaries

Guidelines and distinctions set within an organization to delineate responsibilities, roles, and departments.

External Environment

External factors, forces, situations, and events outside the organization that can affect its performance and strategies.

Bureaucracy

A rational and efficient form of organization founded on logic, order, and legitimate authority.