A new fertilizer was applied to the soil of 222 bean plants. 28% showed increased growth. Find the margin of error and 95% confidence interval for the percentage of all bean plants which show increased growth after application of the fertilizer. Round all answers to 2 decimal places. Margin of Error (as a percentage): Confidence Interval: % to

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A:

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A:

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A:

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A: Given,n=972and X=577α=1-0.99=0.01α2=0.005Z0.005=2.576