Create interval for the true average age of the consumers

Reference no: EM13147960

The makers of a soft drink want to identify the average age of its consumers. A sample of 16 consumers is taken. The average age in the sample was 22.5 years with a standard deviation of 5 years.

a. Construct a 95% confidence interval for the true average age of the consumers.
b. Construct an 80% confidence interval for the true average age of the consumers

Reference no: EM13147960

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