Among a Sample of 78 Students Selected at Random from One

question 30

Short Answer

Among a sample of 78 students selected at random from one college, the mean number of siblings is 1.5 with a standard deviation of 1.2. Estimate the mean number of siblings for all students at this college. Give the 95% confidence interval to two decimal places.

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Definitions:

Constructive

Relating to or characterized by building up, improving, or contributing positively to something.

Significant

Having a particularly important, notable, or consequential value or impact.

Persistent Annoyance

A continuous or recurring irritation that may affect one's performance, mood, or interactions negatively.

Self-serving Bias

A cognitive bias where individuals attribute their successes to internal factors and their failures to external factors.