(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 toolmanufacture independent of the archaeological excavation site? Two different excavation sites gave the information in the following table. Use a chi-square test with 5% levelof significance to test the claim that raw material used for construction of stone tools and excavation site are independent.Stone Tool Construction MaterialSite AMaterialSite BRow TotalBasalt7501105651315Pedernal chertObsidian555781493480101123110351792724Column TotalOther(a) What is the level of significance?

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Answered: This question refers to excavations at…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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?

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