Suppose the Proportion of First Year Students at a Particular $\mathrm { P } 1$

question 34

Essay

Suppose the proportion of first year students at a particular university who purchased used textbooks in the past year is $\mathrm { P } 1$ and the proportion of second year students at the university who purchased used textbooks in the past year is $\mathrm { P } 2$ .A study found a 95% confidence interval for $p _ { 1 } - p _ { 2 }$ is $( 0.237,0.421 )$ Does this interval suggest that first year students are more likely than second year students to buy used textbooks? Explain.

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Definitions:

Prompt Delivery

Quick and efficient provision or supply of goods, services, or information.

Negative News

Information that is unfavorable or disappointing, often requiring careful delivery to minimize impact.

Element of Apology

A component of communication expressing regret or sorrow for actions or mistakes, often seeking forgiveness.

Meet Expectations

To achieve or satisfy the standard of quality or level of performance that has been established or anticipated.