Question: Find 95% confidence intervals in the following cases, assuming that the standard deviations are known to match those in the earlier problem. Does the confidence

Find 95% confidence intervals in the following cases, assuming that the standard deviations are known to match those in the earlier problem. Does the confidence interval include the true mean?
1. A sample mean of 0.4 is found in Exercise 25.
2. A sample mean of 0.7 is found in Exercise 26.

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