What adds to get negative seven and multiplies to get five

Asoccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in

Volume of cylinder with a radius of 8cm and height of 25 cm

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?