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. 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 gavethe 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 MaterialMaterialSite ASite BRow TotalBasaltObsidian728587131510788195Pedernal chert5165191035OtherColumn Total8990179144012842724(a) What is the level of significance?State the null and alternate hypotheses.O Hn: Stone tool material and site are not independent.H,: Stone tool material and site are independent.O Hn: Stone tool material and site are independent.H1: Stone tool material and site are not independent.O Ho: Stone tool material and site are not independent.H: Stone tool material and site are not independent.O Ho: Stone tool material and site are independent.H1: Stone tool material and site are independent.(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.)Are all the expected frequencies greater than 5?O YesO NoWhat sampling distribution will you use?O Student'stO chi-squareO normalO uniformO binomial What are the degrees of freedom?(c) Find or estimate the P-value of the sample test statistic. (Round your answer to three decimal places.)O p-value > 0.100O 0.050 < p-value < 0.100O 0.025 < p-value < 0.050O 0.010 < p-value < 0.025O 0.005 < p-value < 0.010O p-value < 0.005(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis of independence?O Since the P-value > a, we fail to reject the null hypothesis.O Since the P-value > a, we reject the null hypothesis.O since the P-value

Name: This question refers to excavations at a national monument. One questi
Uploaded: 2024-03-20T07:07:12.000Z
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Description: 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