This question refers to excavations at a national monument. One question the archaeologists asked was: Is raw material used by prehistoric Indians for stone tool manufacture independent of the archaeological excavation site? Two different excavation sites gave the information in the following table. Use a chi-square test with 5% level of significance to test the claim that raw material used for construction of stone tools and excavation site are independent. Stone Tool Construction Material Site A Material Site B Row Total Basalt 750 110 565 1315 Pedernal chert Obsidian 555 78 1493 480 101 1231 1035 179 2724 Column Total Other (a) What is the level of significance?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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(b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimal places. Round the test statistic to three decimal places.)

What are the degrees of freedom?

 

This question refers to excavations at a national monument. One question the archaeologists asked was: Is raw material used by prehistoric Indians for stone tool
manufacture independent of the archaeological excavation site? Two different excavation sites gave the information in the following table. Use a chi-square test with 5% level
of significance to test the claim that raw material used for construction of stone tools and excavation site are independent.
Stone Tool Construction Material
Site A
Material
Site B
Row Total
Basalt
750
110
565
1315
Pedernal chert
Obsidian
555
78
1493
480
101
1231
1035
179
2724
Column Total
Other
(a) What is the level of significance?
Transcribed Image Text:This question refers to excavations at a national monument. One question the archaeologists asked was: Is raw material used by prehistoric Indians for stone tool manufacture independent of the archaeological excavation site? Two different excavation sites gave the information in the following table. Use a chi-square test with 5% level of significance to test the claim that raw material used for construction of stone tools and excavation site are independent. Stone Tool Construction Material Site A Material Site B Row Total Basalt 750 110 565 1315 Pedernal chert Obsidian 555 78 1493 480 101 1231 1035 179 2724 Column Total Other (a) What is the level of significance?
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