A consumer watch group interviewed a random sample of 1000 consumers and asked them if they are optimistic about the economy or not. There were 612 who said Yes. 1. Use 95% confidence level to estimate the population proportions. What is the margin of error E? a. 1.54% b. 1.53% c. 0.0155 d. none of the above 2. Use 95% confidence level to estimate the population proportions. What is the upper limit? a. 60.12% b. 65.42% c. 61.25% d. 64.22%

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A: Option A is correct

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Q: Use the sample data and confidence level given below to complete parts  (b)   A research institute…

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