Use the Given Degree of Confidence and Sample Data to Find

question 55

Multiple Choice

Use the given degree of confidence and sample data to find a confidence interval for the population standard deviation ?.
Assume that the population has a normal distribution. Round the confidence interval limits to the same number of decimal places as the sample standard deviation.
-Weights of men: $90 \%$ confidence; $\mathrm { n } = 14 , \overline { \mathrm { x } } = 154.8 \mathrm { lb } , \mathrm { s } = 11.1 \mathrm { lb }$

• A) \(8.7 \mathrm { lb } < \sigma < 14.3 \mathrm { lb }\)
• B) \(8.2 \mathrm { lb } < \sigma < 15.6 \mathrm { lb }\)
• C) \(9.0 \mathrm { lb } < \sigma < 2.7 \mathrm { lb }\)
• D) \(8.5 \mathrm { lb } < \sigma < 16.5 \mathrm { lb }\)

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Definitions:

Preconventional Moral Reasoning

The first level of Kohlberg's stages of moral development, where individuals' moral reasoning is based on personal interests and the consequences of their actions.

Conventional Moral Reasoning

A stage in moral development where individuals' ethical behavior is guided primarily by societal rules and norms.

Social Conventions

Agreed-upon rules and norms that govern social behavior and interactions among individuals within a society.

School-Age Children

Refers to children who are in the age range typically required to attend primary and secondary school, usually between 5 and 18 years of age.