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1. How many conditions are there in the simplest possible experiment?
2. Describe how participants are assigned to conditions in randomized groups, matched-subjects, and repeated measures experimental designs.
3. What are the relative advantages and disadvantages of posttest-only versus pretestposttest experimental designs?
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.
aj davis is a department store chain which has many credit customers and wants to find out more information about these
Explain why odds of 4 to 5 in favour of an event occurring have a different meaning than the same event having a probability of 4/5.
"Assuming that all else remains constant, the length of a confidence interval for a population mean increases whenever the confidence level and sample size increase simultaneously."
it is estimated that 56 of the children between the ages of 3 and 5 years are already enrolled in school. in a sample
There are many examples of the role of noise in human communications. One story concerns a communication exchange which purportedly took place during the First World War.
Suppose that 255 such companies are selected independently and at random. (a) What is the probability that 186 companies in the sample electronically monitor their employees?
a medical devices company wants to know the number of hours their mri machines are used per day. a previous study found
List the constraint(s) that are not binding and interpret their slack/surplus variable(s). What does it mean that the right-hand side range of constraint 2 has no upper limit?
Sample data have been collected, and the null hypothesis to be tested is H0: "The sample was drawn from a normal population in which µ, 5 130." If the analy- sis is based on a categorization that includes 8 cells:
Suppose that you randomly select 10 marketing personnel to participate in a personal development program. What is the probability that more than half of them will be extroverts? What is the probability that all of them will be extroverts?
questionpart a you have been offered the choice of 3 prizesprize 1 15000 cash payable immediatelyprize 2 2 yearly
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