Mathematics, 16.04.2021 07:00 Soloaa
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A sample of 60 Grade 9 students' ages was obtained to estimate the mean age of all Grade 9 students. X = 15.3 years and the population variance is 16.
a. What is the point estimate for ÎĽ?
b. Find the 95% confidence interval for ÎĽ.
C. Find the 99% confidence interval for ÎĽ.
d. What conclusions can you make based on each estimate?
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Answers: 2
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