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Quiz 4.2 &amp; 5.1

# Quiz 4.2 &amp; 5.1 - View Attempt...

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View Attempt 1 of 1 Title: MTH 316 Quiz 4.2 and 5.1 Started: September 26, 2010 4:13 PM Submitted: September 26, 2010 4:23 PM Time spent: 00:09:04 Total score: 9/10 = 90% Total score adjusted by 0.0 Maximum possible score: 10 Done 1. In the least squares line what is the marginal change in for each unit change in x ? Student Response Value Correct Answer Feedback 1. –1 0% 2. 5 100% 3. 1 0% 4. 11 0% 5. 6 0% Score: 1/1 Comments: 2. If two variables have a negative linear correlation, the slope of the least-squares line is positive. Student Response Value Correct Answer Feedback 1. true 0% 2. false 100% Score: 0/1 Comments: 3. It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific cultural affiliation as the elevation of the site increases. Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection of archaeological sites in New Mexico: Your location: Assessments View All Submissions › View Attempt View Attempt http://webctap.gardner-webb.edu/webct/urw/lc9821263...

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