Assume That a Simple Random Sample Has Been Selected from a Normally

question 110

Essay

Assume that a simple random sample has been selected from a normally distributed population. Find the test statistic, P-value, critical value(s), and state the final conclusion.
-A researcher wants to check the claim that convicted burglars spend an average of $18.7$ months in jail. She takes a random sample of 11 such cases from court files and finds that $\bar { x } = 20.5$ months and $s = 7.9$ months. Test the null hypothesis that $\mu = 18.7$ at the $0.05$ significance level.

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Definitions:

Formal Authority

Power or right, based on one's position in an organization, to make decisions, command resources, or direct the work of others.

Refreezing

The phase of Lewin’s planned change process at which change is stabilized.

Long-Term Continuity

The strategic aim of ensuring an organization's operations, values, and goals persist over a lengthy period.

Planned Change

A deliberate effort to improve a system or process, often involving interventions designed by management.