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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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part b please

Transcribed Image Text:You may need to use the appropriate appendix table or technology to answer this question. 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) Formulate the hypotheses that could be used to determine whether the percentage of supermarket shoppers who believe that the supermarket ketchup was as good as the national brand ketchup is less than 63%. Ho: p = 0.63 H: p + 0.63 Ho: p < 0.63 H3: p 2 0.63 Но: р> 0.63 Ha: p < 0.63 Ho: p > 0.63 H2: p < 0.63 Ho: ps 0.63 Ha: p > 0.63 (b) 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? Find the value of the test statistic. (Round your answer to two decimal places.) -2.49 Find the p-value. (Round your answer to four decimal places.) p-value = -.0383 O O5 what ic vour concLucion

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