Mathematics, 03.12.2021 23:00 chazpooh39151
Hallam, Price, and Katsarou (2002) investigated the influence of background noise on classroom performance for children aged 10-12. In one part of the study, calming music led to better performance on an arithmetic task compared to a no-music condition. Suppose that a researcher selects one class of 18 students who listen to calming music each day, while a second class of 18 students serves as a control group with no music. Accuracy scores are measured for each child. Which hypothesis test would be appropriate for this example
Answers: 3
Mathematics, 21.06.2019 14:30
Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²
Answers: 1
Mathematics, 21.06.2019 16:20
Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.
Answers: 3
Mathematics, 21.06.2019 18:30
The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.
Answers: 1
Hallam, Price, and Katsarou (2002) investigated the influence of background noise on classroom perfo...
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