A quality control technician is checking the weights of a product.She takes a random sample of 8 units and weighs each unit.The observed weights (in ounces) are shown below.Assume the population has a normal distribution. 
Provide a 95% confidence interval for the mean weight of all such units.
Definitions:
Diet Soda
is a low-calorie or zero-calorie carbonated beverage made with artificial sweeteners instead of sugar.
Substitution Effect
The change in consumption patterns due to a change in price, leading consumers to substitute one product for another.
Real Balance Effect
An economic theory suggesting that inflation or deflation changes individuals' purchasing power, affecting their real income and consumption patterns.
Marginal Utility
The additional satisfaction or utility gained by consuming one more unit of a good or service.
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