11. A random sample of 100 movie theaters showed that the mean price of a movie was a standard deviation of $.80. Construct a 99% confidence interval for the population mean.

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.