A school principal would like to evaluate whether the temperature of a classroom affects learning. She asks 3 classrooms (with 5 students in each classroom) to participate in the experiment, receiving an hour-long videotaped lesson. One of the classrooms is kept at a constant temperature of 60 degrees, the other at 70, and the last at 80 degrees. After the lesson, students all receive the same quiz to test their acquisition of material. Below is their data. Test the hypothesis that room temperature affects test performance using an alpha level of 0.05. Required:
a. What test is appropriate?
b. State your null hypothesis.
c. State your alternative hypothesis.
d. Find the critical value
e. Calculate the obtained statistic

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.

teleportation

step-by-step explanation: