The following table shows ceremonial ranking and type of pottery sherd for a random sample of 434 sherds at an archaeological location. Ceremonial Ranking Cooking Jar Sherds Decorated Jar Sherds (Noncooking) Row Total A 89 46 135 B 91 54 145 C 80 74 154 Column Total 260 174 434 Use a chi-square test to determine if ceremonial ranking and pottery type are independent at the 0.05 level of significance. State the null and alternate hypotheses. H0: Ceremonial ranking and pottery type are not independent. H1: Ceremonial ranking and pottery type are not independent.H0: Ceremonial ranking and pottery type are independent. H1: Ceremonial ranking and pottery type are not independent. H0: Ceremonial ranking and pottery type are not independent. H1: Ceremonial ranking and pottery type are independent.H0: 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? Student's t normal uniform binomial chi-square 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.) P-value > 0.100 0.050 < P-value < 0.100 0.025 < P-value < 0.050 0.010 < P-value < 0.025 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 > ?, we fail to reject the null hypothesis. Since the P-value > ?, we reject the null hypothesis. Since the P-value ≤ ?, we reject the null hypothesis. Since the P-value ≤ ?, we fail to reject the null hypothesis. (e) Interpret your conclusion in the context of the application. At the 5% level of significance, there is sufficient evidence to conclude that ceremonial ranking and pottery type are not independent.At the 5% level of significance, there is insufficient evidence to conclude that ceremonial ranking and pottery type are not independent.

The following table shows ceremonial ranking and type of pottery sherd for a random sample of 434 sherds at an archaeological location. Ceremonial Ranking Cooking Jar Sherds Decorated Jar Sherds (Noncooking) Row Total A 89 46 135 B 91 54 145 C 80 74 154 Column Total 260 174 434 Use a chi-square test to determine if ceremonial ranking and pottery type are independent at the 0.05 level of significance. State the null and alternate hypotheses. H0: Ceremonial ranking and pottery type are not independent. H1: Ceremonial ranking and pottery type are not independent.H0: Ceremonial ranking and pottery type are independent. H1: Ceremonial ranking and pottery type are not independent. H0: Ceremonial ranking and pottery type are not independent. H1: Ceremonial ranking and pottery type are independent.H0: 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? Student's t normal uniform binomial chi-square 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.) P-value > 0.100 0.050 < P-value < 0.100 0.025 < P-value < 0.050 0.010 < P-value < 0.025 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 > ?, we fail to reject the null hypothesis. Since the P-value > ?, we reject the null hypothesis. Since the P-value ≤ ?, we reject the null hypothesis. Since the P-value ≤ ?, we fail to reject the null hypothesis. (e) Interpret your conclusion in the context of the application. At the 5% level of significance, there is sufficient evidence to conclude that ceremonial ranking and pottery type are not independent.At the 5% level of significance, there is insufficient evidence to conclude that ceremonial ranking and pottery type are not independent.

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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The following table shows ceremonial ranking and type of pottery sherd for a random sample of 434 sherds at an archaeological location.

Ceremonial Ranking	Cooking Jar Sherds	Decorated Jar Sherds (Noncooking)	Row Total
A	89	46	135
B	91	54	145
C	80	74	154
Column Total	260	174	434

Use a chi-square test to determine if ceremonial ranking and pottery type are independent at the 0.05 level of significance.

State the null and alternate hypotheses.

H₀: Ceremonial ranking and pottery type are not independent. H₁: Ceremonial ranking and pottery type are not independent.H₀: Ceremonial ranking and pottery type are independent. H₁: Ceremonial ranking and pottery type are not independent. H₀: Ceremonial ranking and pottery type are not independent. H₁: Ceremonial ranking and pottery type are independent.H₀: 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?

Student's t

normal

uniform

binomial

chi-square

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.)

P-value > 0.100

0.050 < P-value < 0.100

0.025 < P-value < 0.050

0.010 < P-value < 0.025

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 > ?, we fail to reject the null hypothesis.

Since the P-value > ?, we reject the null hypothesis.

Since the P-value ≤ ?, we reject the null hypothesis.

Since the P-value ≤ ?, we fail to reject the null hypothesis.

(e)

Interpret your conclusion in the context of the application.

At the 5% level of significance, there is sufficient evidence to conclude that ceremonial ranking and pottery type are not independent.At the 5% level of significance, there is insufficient evidence to conclude that ceremonial ranking and pottery type are not independent.

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