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Do part b,c,d and e

Do part b,c,d and e

MATLAB: An Introduction with Applications
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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Do part b,c,d and e

O Use a chi-square test to determine if ceremonial ranking and pottery type are independent at the 0.05 level of significance. (a) What is the level of significance? State the null and alternate hypotheses. Ho: Ceremonial ranking and pottery type are not independent. Hi: Ceremonial ranking and pottery type are independent. Ho: Ceremonial ranking and pottery type are not independent. Hi: Ceremonial ranking and pottery type are not independent. H: Ceremonial ranking and pottery type are independent. Hi: Ceremonial ranking and pottery type are not independent. Hi: Ceremonial ranking and pottery type are independent. H₁: Ceremonial ranking and pottery type 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? Yes No What sampling distribution will you use? Ochi-square uniform Student's normal 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.) 0.025 < P-value < 0.050 0.010 < P-value < 0.025 P-value > 0.100 0.050 < P-value < 0.100 0.005 < P-value < 0.010 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? Since the P-value > x, we fail to reject the null hypothesis. Since the P-value > x, we reject the null hypothesis. Since the P-values o, we reject the null hypothesis. to reject the null hypothesis. Since the P-value ≤ a, we fail (e) Interpret your conclusion in the context of the application.
Transcribed Image Text:O Use a chi-square test to determine if ceremonial ranking and pottery type are independent at the 0.05 level of significance. (a) What is the level of significance? State the null and alternate hypotheses. Ho: Ceremonial ranking and pottery type are not independent. Hi: Ceremonial ranking and pottery type are independent. Ho: Ceremonial ranking and pottery type are not independent. Hi: Ceremonial ranking and pottery type are not independent. H: Ceremonial ranking and pottery type are independent. Hi: Ceremonial ranking and pottery type are not independent. Hi: Ceremonial ranking and pottery type are independent. H₁: Ceremonial ranking and pottery type 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? Yes No What sampling distribution will you use? Ochi-square uniform Student's normal 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.) 0.025 < P-value < 0.050 0.010 < P-value < 0.025 P-value > 0.100 0.050 < P-value < 0.100 0.005 < P-value < 0.010 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? Since the P-value > x, we fail to reject the null hypothesis. Since the P-value > x, we reject the null hypothesis. Since the P-values o, we reject the null hypothesis. to reject the null hypothesis. Since the P-value ≤ a, we fail (e) Interpret your conclusion in the context of the application.
The following table shows ceremonial ranking and type of pottery sherd for a random sample of 434 sherds at an archaeological location. Ceremonial Ranking A B Column Total Cooking Jar Sherds 91 89 76 256 Decorated Jar Sherds (Noncooking) 44 56 78 178 Row Total 135 145 154 434
Transcribed Image Text:The following table shows ceremonial ranking and type of pottery sherd for a random sample of 434 sherds at an archaeological location. Ceremonial Ranking A B Column Total Cooking Jar Sherds 91 89 76 256 Decorated Jar Sherds (Noncooking) 44 56 78 178 Row Total 135 145 154 434
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