Dos padres de familia, desean saber cuales son los costos de los uniformes escolares que compraron para sus hijos, ya que el primer padre realizo la siguiente compra: 2 pants y 4 playeras, pagando por ello $820; el segundo padre de familia realizo la siguiente compra: 1 pants y 3 playeras, pagando por ello $490 A)¿los padres de familia pagaron al mismo precio cada pants y cada playera?
B)¿existe diferencia de valores de "x" y "y" en la ecuacion 1 con respecto a la ecuacion 2?

Anull hypothesis states that the difference between 8 hours of sleep and 3 hours of sleep has no effect on the number of pictures a student will remember during a picture memory interface test (pmit). examining the mit database, an extremely small t-value of 0.1611 is found. this t-value is much smaller than the smallest t-value on the chart for p-value reference. from this information we can: select one: a. accept the null hypothesis because the p-value obtained shows that the difference between the two groups being tested is not statistically significant b. accept the null hypothesis because the p-value obtained was statistically significant c. reject the null hypothesis because of the p-value obtained d. reject the null hypothesis because the data obtained is statistically significant