An ecologist finds 220 yellow-flowered plants and 180 white-flowered plants. Use the normal distribution to find the Lower boundary of a 95% confidence interval for the proportion of yellow-flowered...

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Extracted text: An ecologist finds 220 yellow-flowered plants and 180 white-flowered plants. Use the normal distribution to find the Lower boundary of a 95% confidence interval for the proportion of yellow-flowered plants. Which of the following answers is correct to 2 decimal places? [Choose a value that's closest to your answer.] O Lower boundary = 0.60 O Lower boundary = 0.30 O Lower boundary = 0.50 O Lower boundary = 0.40