3. In a random sample of 50 people, the mean body mass index (BMI) was 27.7 and the sample standard deviation (s) was 6.12. The
3. In a random sample of 50 people, the mean body mass index (BMI) was 27.7 and the sample standard deviation (s) was 6.12. The population standard deviation(o) is UNKNOWN. a. Construct a 90% Confidence interval for the population mean. (3 points) [Use Algebra first then Tech next] b. Construct a 96% Confidence interval for the population mean. (3 points) [Use Algebra first then Tech next]
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