A chain of coffee shops has 45 stores in one metropolitan area. For liability reasons, the
chain is interested in the average temperature of hot drinks served at the stores.
Three
stores were chosen and the temperature of every fifth hot drink served at each of these
stores was recorded during a two-week period. At the end of the two-week period, the
temperatures of 10,571 hot drinks had been recorded.
a. Identify the process of interest.
b. Identify the variable of interest.
c. Describe the sample.
d. Describe the inference of interest.
a. serving of hot drinks at coffee shops in the chain
b. temperature of hot drinks served
c. 10,571 drinks whose temperatures recorded over the two-week period
d. average temperature of all hot drinks served at all stores in the chain
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