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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Mathematics, 21.06.2019 16:00
Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.
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Mathematics, 21.06.2019 18:30
In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2
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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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