You measure 27 textbooks' weights, and find they have a mean weight of 74 ounces. Assume the population standard deviation is 12.1 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight.

i can't solve unless i know what the line is

step-by-step explanation:

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in mathematics, a constraint is a condition of an optimization problem that the solution must satisfy. there are several types of constraints—primarily equality constraints, inequality constraints, and integer constraints. the set of candidate solutions that satisfy all constraints is called the feasible set.

hoped i'm right lol