Among a Sample of 61 Students Selected at Random from a University,the

question 81

Multiple Choice

Among a sample of 61 students selected at random from a university,the mean number of siblings is 1.5 with a standard deviation of 0.9.Find a 95% confidence interval for the mean number of siblings for all students at this university.

• A)(1.39,1.53)
• B)(1.47,1.53)
• C)(68.53,71.47)
• D)(1.39,1.61)
• E)(1.27,1.73)

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Definitions:

Demonstrably Correct Solutions

Demonstrably Correct Solutions are solutions or answers to problems that can be proven to be right or effective through evidence or demonstration.

Sins of Commission

Errors or wrongdoings resulting from action taken, as opposed to inaction or omission.

Sins of Omission

Failures to act that result in negative outcomes or harm, often discussed in ethical or moral contexts.

Risky Shifts

A phenomenon observed in group decision-making processes, where groups tend to make riskier decisions than individuals would when alone.