Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
QUESTION
An analyst constructed a confidence interval for the average age of its customers by taking a sample of 900 customers. The average age of the 900...
An analyst constructed a confidence interval for the average age of its customers by taking a sample of 900 customers. The average age of the 900 customers was 32.7 years and the standard deviation was 4.0 years. If the 90% confidence interval for the true average age of the customer population is 32.7 ± x years, what is x?
