A Researcher Wishes to Determine the Difference in Two Population

question 17

Multiple Choice

A researcher wishes to determine the difference in two population means.To do this, she randomly samples 9 items from each population and computes a 90% confidence interval.The sample from the first population produces a mean of 780 with a standard deviation of 240.The sample from the second population produces a mean of 890 with a standard deviation of 280.Assume that the values are normally distributed in each population and that the population variances are approximately equal.The critical t value used from the table for this is _______.

• A)1.860
• B)1.734
• C)1.746
• D)1.337
• E)2.342

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Colonial Governors

Officials appointed to govern a colony, representing the interests of the colonizing country.

Colonial Assemblies

Legislative bodies in the American colonies where elected representatives of the colonists gathered to make local laws, levy taxes, and ensure their interests were represented.

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Religious Fundamentalism

A strict adherence to specific theological doctrines typically in reaction against what its followers perceive as a dangerous modernism, leading to an emphasis on purity and the desire to return to a previous ideal from which believers have begun to drift.