A 4th of July celebration T-shirt for this year will cost festival organizers $12 each and will sell for $25 before and on July 4th. Any unsold T-shirts can usually be sold at a discount after the festival for $5 each. If demand is normally distributed with a mean of 1,800 T-shirts and a standard deviation of 75, what is the desired-service level?

cognitive overload: having a lot on your mind impairs decision-making and tends to result in the simplest, but not necessarily best, option being selected.

empathy gaps: overlooking how you might feel in a different situation can result in unnecessary purchases, such as overbuying when shopping for food on an empty stomach.

optimism and overconfidence: wearing rose-tinted glasses and having unrealistic expectations about the future can affect money management and leave you unprepared for a change in circumstance.

instant gratification: seeking instant gratification drives impulsive spending and can undermine long-term planning and savings.

harmful habits: automatic or mindless behaviour can amplify a poor financial decision as it becomes a recurring event.

social norms: we are heavily influenced by the actions of others; while this can be in certain circumstances, it also contributes to the pressure to keep up with the joneses through conspicuous consumption.

watch how they communicate and watch how they handle their free time

hope it !