IV. EXERCISES A. A random sample of 60 Grade 11 students' ages is obtained to estimate the mean ages of all Grade 11 students. Suppose the sample mean is 17.3 and the population variance is 18, 1. What is the point estimate of the population parameter? 2. Find the 95% confidence interval for the population parameter? 3. Find the 99% confidence interval for the population parameter?

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IV. EXERCISES
A. A random sample of 60 Grade 11 students' ages is obtained to estimate the mean ages
of all Grade 11 students. Suppose the sample mean is 17.3 and the population variance
is 18,
1. What is the point estimate of the population parameter?
2. Find the 95% confidence interval for the population parameter?
3. Find the 99% confidence interval for the population parameter?
Transcribed Image Text:IV. EXERCISES A. A random sample of 60 Grade 11 students' ages is obtained to estimate the mean ages of all Grade 11 students. Suppose the sample mean is 17.3 and the population variance is 18, 1. What is the point estimate of the population parameter? 2. Find the 95% confidence interval for the population parameter? 3. Find the 99% confidence interval for the population parameter?
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