The accuracy of a census report on a city in southern California was questioned by some government officials. A random sample of 1215 people living in the city was used to check the report, and the results are shown below. Ethnic Origin Black Asian Anglo Latino/Latina Native American All others Census Percent 10% 3% 38% 41% 6% 2% Sample Result 129 34 463 511 65 13 Using a 1% level of significance, test the claim that the census distribution and the sample distribution agree. (a) What is the level of significance? 0.01 State the null and alternate hypotheses. O Họ: The distributions are different. H1: The distributions are the same. Họ: The distributions are the same. H1: The distributions are the same. Ho: The distributions are different. H1: The distributions are different. O Ho: The distributions are the same. H1: The distributions are different. (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? Yes No What sampling distribution will you use? chi-square normal uniform binomial Student's t What are the degrees of freedom?

The accuracy of a census report on a city in southern California was questioned by some government officials. A random sample of 1215 people living in the city was used to check the report, and the results are shown below. Ethnic Origin Black Asian Anglo Latino/Latina Native American All others Census Percent 10% 3% 38% 41% 6% 2% Sample Result 129 34 463 511 65 13 Using a 1% level of significance, test the claim that the census distribution and the sample distribution agree. (a) What is the level of significance? 0.01 State the null and alternate hypotheses. O Họ: The distributions are different. H1: The distributions are the same. Họ: The distributions are the same. H1: The distributions are the same. Ho: The distributions are different. H1: The distributions are different. O Ho: The distributions are the same. H1: The distributions are different. (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? Yes No What sampling distribution will you use? chi-square normal uniform binomial Student's t What are the degrees of freedom?

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Description: The accuracy of a census report on a city in southernCalifornia was questioned by some government officials. Arandom sample of 1215 people living in the city was used tocheck the report, and the results are shown below.Ethnic OriginBlackAsianAngloLa

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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Another type of painted ceramic vessel is called three-circle red-on-white ( Mimbres Mogollon Archaeology). At four different sites in the Wind Mountain archaeological region, the number of such sherds was counted in local dwelling excavations. Site I Site II Site III Site IV 15 13 38 15 22 2 20 21 4 31 15 13 15 7 44 34 17 23 12 11 12 Shall we reject or not reject the claim that there is no difference in the population mean three-circle red-on-white sherd counts for the four sites? Use a 5% level of significance. (a) What is the level of significance? (b) Find SSTOT, SSBET, and SSW and check that SSTOT = SSBET + SSW. (Use 3 decimal places.) SSTOT = SSBET = SSW = Find d.f.BET, d.f.W, MSBET, and MSW. (Use 3 decimal places for MSBET, and MSW.) dfBET = dfW = MSBET = MSW = Find the value of the sample F statistic. (Use 3 decimal places.)What are the degrees of freedom??(numerator)?(denominator)(c) Find the P-value of the sample…
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