The contingency table below shows the results of a random sample of 200 state representatives that was conducted to see whether theieopinions on a bill are related to their party affiliations. Use a 0.05.OpirionApprove Disapprove No OpinionSTTTPartyRepublicanDemocratIndependent4220145024181016Find the rejection region used to test the claim of independence.O x > 9.488O x? > 11.143O x > 13.277Ox > 7.779

Formula : Degree of freedom : df = (row-1) (column-1)

Answered: The contingency table below shows the…

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 contingency table below shows the results of a random sample of 200 state representatives that was conducted to see whether their opinions on a bill are related to their party affiliation. Party Approve Dissaprove no opinion republican 36 22 5 democrat 42 26 19 independent 12 14 8 Find the chi-square test statistic x2 used to test the claim of independence.
Due to a manufactoring error, three cans of regular soda were accidently filled with diet soda, placed into a 12-pack. Suppose that two cans were randomly selected from the 12-pack. A) determine the probabilty that that neither contain diet soda. Would this be unusual? B) Determine the probabilty that exactly one is diet.
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The national membership for the CPAs, states that at least 12% of first time takers of the CPA exam pass. You suspect this claim is false, so you randomly select 620 first time takers and find that 63 pass on the first try. Using a level of significance of .05, test their claim
A study showed that 63% of supermarket shoppers believe supermarket brands to be as good as national name brands. To investigate whether this result applies to its own product, the manufacturer of a national name-brand ketchup asked a sample of shoppers whether they believed that supermarket ketchup was as good as the national brand ketchup. (a) If a sample of 100 shoppers showed 51 stating that the supermarket brand was as good as the national brand, what is the p-value? i. Find the value of the test statistic. (Round your answer to two decimal places.) ii.Find the p-value. (Round your answer to four decimal places.) p-value =
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A direct mail appeal for contributions from a university’s alumni and supporters is considered to be too costly if less than 25%25% of the alumni and supporters provide monetary contributions. To determine if a direct mail appeal is cost effective, the fundraising director sends the direct mail brochures to a simple random sample of 241241 people on the alumni and supporters mailing lists. They receive monetary contributions from 4949 people. Does this evidence demonstrate that the direct mail campaign is not cost effective? Use a 0.020.02 level of significance. Step 4 of 4: Draw a conclusion and interpret the decision.
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An educator believes that the proportion of finance majors seeking to earn an MBA degree equals the proportion of management majors seeking to earn an MBA degree in the population. A random sample of 100 finance majors is taken and 24 indicate that they will seek to earn an MBA degree. Likewise, a random sample of 400 management majors is taken and 65 indicate that they will seek to earn an MBA degree. Using this information, test the educator’s claim at the 0.05 level
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