Posted by **sharon** on Sunday, August 22, 2010 at 12:04am.

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:

x 5.75 6.00 6.75 7.25 7.50

y 61 41 62 81 98

r=0.855

x-bar=6.65

~y68.6

y=-93.145+24-323x

what percentage of the variation in y cannot be explained by the corresponding variation in x and the least-squares line?

(Points: 4)

2.1%

7.2%

26.9%

73.1%

85.5%

## Answer This Question

## Related Questions

- statistics - It is thought that prehistoric Indians did not take their best ...
- Statistics - 10. It is thought that prehistoric Indians did not take their best ...
- Statistics - 8. It is thought that prehistoric Indians did not take their best ...
- Statistics - 9. It is thought that prehistoric Indians did not take their best ...
- Statistics - Let x be the elevation (in thousands of feet) for an archaeological...
- Statistics - Let x be the elevation (in thousands of feet) for an archaeological...
- history - Second half ---- 6-Which of the following locations would offer the ...
- US History - Do you know of any sites that gives statistics about Japaneese POW ...
- HRM - o Name three selection tools that you would consider using for a hiring ...
- math - 1. Thomas wants to lose weight for the summer. He currently weighs 245 ...

More Related Questions