We use a z rather than a t test when: A) The population mean is known
B)The population standard deviation is known
C) Neither the population mean or standard deviation are known

You have 24 hours to sleep, eat, work, and do all your personal tasks. which is the most effective way to do more in your day? a. eat less b. sleep less c. work more d. take more breaks

Marie places her house plant near a window. the sun shines in the window, but her plant is slightly out of reach for the sun. what will marie's plant do to survive

Free points + brainliest to one who answers it correctly braking is when you squeeze the brake pedal until just before the wheels lock, then ease off the pedal, then squeeze again, repeating until you've reduced your speed enough. a. traditional b. power c. abs d. threshold