Mathematics, 18.03.2021 01:20, karnun1201
A researcher wants to test whether a certain sound will make rats do worse on
Learning tasks. It is known that an ordinary rat can learn to run a particular maze
Correctly in 18 trials, with a standard deviation of 6. (The number of trials to
Learn this maze is normally distributed.) The researcher now tries an ordinary rat
In the maze, but with the sound. The rat takes 38 trials to learn the maze.
Using the .05 level, what should the researcher conclude? Solve this problem
Explicitly using all five steps of hypothesis testing, and illustrate your answer
With a sketch showing the comparison distribution, the cutoff (or cutoffs), and
The score of the sample on this distribution
Answers: 1
Mathematics, 21.06.2019 17:30, ooorozco
Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.
Answers: 1
Mathematics, 21.06.2019 23:00, dianereyes7475
The angles in a triangle are represented by 5x, 8x, and 2x+9. what is the value of ? a.10.8 b.11.4 c.9.7 d.7.2
Answers: 2
A researcher wants to test whether a certain sound will make rats do worse on
Learning tasks. It is...
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