2. Answer the following questions on population proportion.A researcher claims that 90% of all the residents on a certain barangay easilybelieves on rumors. A group of students want to verify the claim and 499 out of 569randomly selected residents believes easily on rumors. At 0.5 level of significance, isthere enough evidence to say that the claim is less than 90%?a. is the sample randomly selected?b. State the two possible outcomes.Success:Failure:c. Are the samples large enough? (Compute for np>5 and nq>5)d. Formulate the null and alternative hypothesis.Null:Alternative:e. For this problem it is left unanswered since the hypothesis has not been tested,would you it be enough to say that the claim is true or false?f. How do you compare a hypothesis that has not been tested with believing to rumorseasily without any proof?

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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A political candidate has asked you to conduct a poll to determine what percentage of people support him. If the candidate only wants a 2% margin of error at a 99% confidence level, what size of sample is needed?
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