It is thought that prehistoric Indians did not take their best tools, pottery, a
ID: 3351001 • Letter: I
Question
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
7.50
8.00
y
10
20
19
42
69
x
5.75
6.00
6.75
7.50
8.00
y
10
20
19
42
69
Explanation / Answer
Using excel data tool, value b will be
b = 23.061
Regression Statistics Multiple R 0.928712054 R Square 0.862506079 Adjusted R Square 0.816674772 Standard Error 10.19086559 Observations 5 ANOVA df SS Regression 1 1954.438776 Residual 3 311.5612245 Total 4 2266 Coefficients Standard Error Intercept -124.816 36.4347502 X Variable 1 23.061 5.315968538Related Questions
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