Sample size for an interval estimate of a population proportion Suppose academic researchers are conducting a study to estimate the proportion of firms with a chief marketing officer in their top management teams. The project manager desires a 0.10 margin of error at 90% confidence. The planning value for p is p* = 0.4.   Use the following Distributions tool to help you answer the question that follows.   To satisfy the desired margin of error, a sample size no smaller than    is needed.

Q: A. Compute 1. p = 0.2, p = 0.18, n = 50 2. p = 0.8, p = 0.72, n = 160 3. the z for each given claim…

A: The given data is 7) p=0.3, p^=0.4, n=608) p=0.12, p^=0.1, n=499) p=0.53, p^=0.54, n=10010) p=0.28,…

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A: here use given sample data  n = 12 (sample)

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A: A.Margin of error (E):The margin of error for proportion p is given by,

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Q: 4. p=0.12, p = 0.13, n = 120 5. p = 0.7, p = 0.68, n = 30 6. p=0.85, p = 0.88, n = 30

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A: Solution: From the given information, confidence level is 0.95, p=0.1 and E=0.01.

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A: Given 220 yellow-flowered plants 180 white-flowered plants Total =n=400