The types of raw materials used to construct stone tools found at an archaeological site are shown below. A random sample of 1486 stone tools were obtained from a current excavation site. Regional Percent of Stone Tools 61.3% 10.6% 11.4% 13.1% 3.6% Observed Number of Tools as Current excavation Site 907 169 157 191 62 Raw Material Basalt Obsidian Welded Tuff Pedernal chert Other Use a 1% level of significance to test the claim that the regional distribution of raw materials fits the distribution at the current excavation site. (a) What is the level of significance? 0.01 State the null and alternate hypotheses. O Ho: The distributions are the same. H1: The distributions are different. Họ: The distributions are different. H1: The distributions are the same. Ho: The distributions are different. H1: The distributions are different. Ho: The distributions are the same. H1: The distributions are the same. (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 Yes No What sampling distribution will you use? Student's t uniform binomial normal chi-square What are the degrees of freedom?
The types of raw materials used to construct stone tools found at an archaeological site are shown below. A random sample of 1486 stone tools were obtained from a current excavation site. Regional Percent of Stone Tools 61.3% 10.6% 11.4% 13.1% 3.6% Observed Number of Tools as Current excavation Site 907 169 157 191 62 Raw Material Basalt Obsidian Welded Tuff Pedernal chert Other Use a 1% level of significance to test the claim that the regional distribution of raw materials fits the distribution at the current excavation site. (a) What is the level of significance? 0.01 State the null and alternate hypotheses. O Ho: The distributions are the same. H1: The distributions are different. Họ: The distributions are different. H1: The distributions are the same. Ho: The distributions are different. H1: The distributions are different. Ho: The distributions are the same. H1: The distributions are the same. (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 Yes No What sampling distribution will you use? Student's t uniform binomial normal chi-square What are the degrees of freedom?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:The types of raw materials used to construct stone tools
found at an archaeological site are shown below. A random
sample of 1486 stone tools were obtained from a current
excavation site.
Regional Percent
of Stone Tools
61.3%
10.6%
11.4%
13.1%
3.6%
Observed Number of Tools as
Current excavation Site
907
169
157
191
62
Raw Material
Basalt
Obsidian
Welded Tuff
Pedernal chert
Other
Use a 1% level of significance to test the claim that the
regional distribution of raw materials fits the distribution at the
current excavation site.
(a) What is the level of significance?
0.01
State the null and alternate hypotheses.
O Ho: The distributions are the same.
H1: The distributions are different.
Họ: The distributions are different.
H1: The distributions are the same.
Ho: The distributions are different.
H1: The distributions are different.
Ho: The distributions are the same.
H1: The distributions are the same.
(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 Yes
No
What sampling distribution will you use?
Student's t
uniform
binomial
normal
chi-square
What are the degrees of freedom?
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