Let's assume our class represents a normal population with a known mean of 90 and population...

Let's assume our class represents a normal population with a known mean of 90 and population standard deviation 2. There are 100 students in the class. a. Construct the 95% confidence interval for the population mean. b. Interpret what this means. c. A few students have come in. Now we cannot assume normality and we don't know the population standard deviation. Let the sample mean = 90 and sample standard deviation = 3. Let's make the sample size 20. We can assume alpha to be .05. Construct the 95% confidence interval assuming this new information

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orchestra answered 1 year ago

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Let's assume our class represents a normal population with a known mean of 90 and population...

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