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Refer to given Example, "Dull Rats," which was done by using a completely randomized design.
a. What were the treatments in this experiment?
b. Were the experimental units the 60 individual rats or the 12 individual experimenters? Explain.
c. Explain how the experiment could have been done using a matched-pair design instead.
Example Dull Rats In a classic experiment that was designed to test whether the experimenter's expectations could really influence the results, Rosenthal and Fode (1963) deliberately conned 12 experimenters. They gave each one five rats that had been taught to run a maze. They told six of the experimenters that the rats had been bred to do well (i.e., they were "maze bright") and told the other six that their rats were "maze dull" and should not be expected to do well.
So, I need these questions answer in two separate discussion boards. The samples from where you will be answering the questions are below. Should be failry easy. Read the sample and then answer if it is a claim or not and why and so on. Do so in ..
A multiple choice test with 50 questions is given. Each question has four choices. What is the student's probability of passing if passing is at least 60% correct?
A PC manufacturer claims that no more than 2% of their machines are defective. In a random sample of 100 machines, it is found that 5% are defective. The manufacturer claims this is a fluke of the sample.
Determine the coefficient of determination. Assuming a direct relationship between the variables, what is the coefficient of correlation?
a researcher wishes to estimate with 90 confidence the proportion of adults who have high speed internet access. her
In your next five races, what is the probability that you will swim under a minute exactly twice?
Show that if n ≥ 2k - 1, there is a strategy that assures you of identifying one of 2k - 1 numbers and hence gives a probability of (2k - 1)/n of winning. Why is this an optimal strategy? Illustrate your result in terms of the case n = 9 and k = 3..
The mean height of women in a country (ages 20-29) is 63.6 inches. A random sample of 50 women in this age group is selected. What is the probability that the mean height for the sample is greater than 64 inches? Assume σ =2.85
for a t random variable with 5 degrees of freedom find a such that pt gt a .975. answer to three decimal places and
A specific brand of bike comes in two frames, for males or females. Each frame comes in a choice of two colors, red and blue, and with a choice of three seats, soft, medium, and hard.
question it is known that the number of business failure in usa per hour is distributed as poisson with mean micro
A shock can cause the failure of component 1 alone with probability p, component 2 alone with probability q, both components with probability r, or have no effects with probability 1-p-q-r. Suppose no repairs are possible and the system fails when..
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