You are testing the claim that the mean gpa of night students is different from the mean gpa of day students. you sample 30 night students, and the sample mean gpa is 2.35 with a standard deviation of 0.46. you sample 25 day students, and the sample mean gpa is 2.58 with a standard deviation of 0.47. test the claim using a 5% level of significance. assume the sample standard deviations are unequal and that gpas are normally distributed. give answer to exactly 4 decimal places.

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need

Which of the following transformations will always produce a congruent figure?

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp