Question: 1. Point Estimation: What is a point estimator? Give an example using the sample mean. 2. Confidence Intervals: Explain what a confidence interval is. If

1. Point Estimation: What is a point estimator? Give an example using the sample mean. 2. Confidence Intervals: Explain what a confidence interval is. If a 95% confidence interval for the population mean is (48, 52), interpret this interval. 3. Calculation: A sample of 36 students has an average test score of 80 with a standard deviation of 12. Construct a 90% confidence interval for the population mean score. (Hint: Use the Z-distribution.) 4. Margin of Error: What factors affect the margin of error in estimating a population parameter

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