A 95% confidence interval estimate for the difference between two population means, ?1 - ?2, is determined to be 62.75 < ?1 - ?2 < 68.52. Which of the following is true if the confidence level is reduced to 90%?

A) The confidence interval becomes wider.
B) The confidence interval remains the same.
C) The confidence interval becomes narrower.
D) More information is required to determine the answer.

C

Business

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A) Graphical models B) Mathematical models C) Verbal models D) Technological models E) Cartoons

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In a world ever sensitive to social and environmental issues, more and more firms are embracing CSR and sustainability. Such firms are more likely than not to ________

A) develop closer relations with foreign stakeholders to better understand their needs and work jointly toward solutions B) minimize their contribution to the local community in order to maximize profits C) be reluctant to hire managers from around the world D) favor region-specific CSR standards to global CSR standards for foreign operations

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