Mathematics, 02.12.2020 06:30 kellysmith45
A teacher wants to know if burning a scented candle affects students performance on pop quizzes. in the experiment there will be a treatment group and a control group each taking their quizzes in a room that either does or does not have a scented candle burning.
why is randomization important when setting up an experiment to answer this research question?
to ensure that both groups have a nice mix of students
to ensure that the two groups have the same number of students
to ensure that both groups are roughly equivalent regarding students preparedness, anxiety levels and study skills
to ensure that the rooms for both groups are approximately the same regarding time of day temperature sound control and lighting.
Answers: 3
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Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)
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Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.
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Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17Ï€/6 (b) tan 13Ï€/4 (c) sec 11Ï€/3
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Mathematics, 21.06.2019 20:30
Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)
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A teacher wants to know if burning a scented candle affects students performance on pop quizzes. in...
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