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Exhibit 12.5
The following questions use the information below.
The owner of Sal's Italian Restaurant wants to study the growth of his business using simulation. He is interested in simulating the number of customers and the amount ordered by customers each month. He currently serves 1000 customers per month and feels this can vary uniformly between a decrease of as much as 5% and an increase of up to 9%. The bill for each customer is a normally distributed random variable with a mean of $20 and a standard deviation of $5. The average order has been increasing steadily over the years and the owner expects the mean order will increase by 2% per month. You have created the following spreadsheet to simulate the problem.
-Sal, from Exhibit 12.5, has produced the following spreadsheet to compute confidence intervals on his income. What formula should go in cell B12 to compute the upper limit on a 95% confidence interval for the population proportion below 90%?
Respiratory System
The network of organs and tissues that help you breathe, including the lungs, airways, and muscles of respiration.
Digestive System
The group of organs responsible for the breakdown and absorption of food and nutrients, and the elimination of waste.
Calcium Deposits
Mineral build-up in body tissues, which can lead to various conditions depending on their location.
Iron Deposits
Accumulations of iron in the body, which may occur in various tissues and organs, possibly leading to health issues.
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