Test Hypotheses About a Population Proportion
-In 1990, the Mean $\sigma = 1.1$

question 19

Short Answer

Test Hypotheses about a Population Proportion
-In 1990, the mean for the number of pets owned per household was 1.9. A poll of 1023 households conducted this year reported the mean for the number of pets owned per household to be 1.8. Assuming $\sigma = 1.1$ , is there sufficient evidence to support the claim that the mean number of pets owned has changed since 1990 at the $\alpha =$ $0.1$ level of significance?

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Definitions:

Quantified Focus

The emphasis on measurable or quantifiable aspects of a subject, often employing statistics and data analysis to understand and assess phenomena.

Best Means

The most efficient and effective ways or methods to achieve a specific end or goal, often discussed in strategic and decision-making contexts.

Controlling Uncertainty

Efforts or strategies employed to manage or mitigate the unpredictability inherent in various aspects of life and decision-making processes.

Patrimonialism

A form of governance where all power flows directly from the leader, typically without a clear distinction between public and private realms.