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What do you think will happen? Consider using the Simple Random Sample applet to assign subjects to treatments as in the previous two exercises.
(a) If you repeated the assignment 20 times, about how many times do you think the individual labeled number 1 would be assigned to Treatment A?
(b) Use the Simple Random Sample applet to generate the assignments 20 times, and report how the results compare with your answer to part (a).
(c) Repeat parts (a) and (b) for the individual labeled 2.
(d) Explore the ideas presented in this exercise with additional work using the Simple Random Sample applet. Explain what you have done and summarize what you have learned in a short paragraph.
Find the mean number of customer complaint calls per week. Find the median number of customer complaint calls per week. Find the variance for the number of customer complaint calls per week
The following random sample was collected: 22 33 44 6 The 80% confidence interval for the mean is?
If the FDA did not approve the new drug, it could still be sold overseas, and the company could make $200 million over the same number of years. Construct a decision tree and recommend a decision on whether to develop the new drug.
fine motor skills were measured in a sample of kindergarteners before and after 6 months of occupational therapy.
a random sample of 45 door-to-door encyclopedia salespersons were asked how long on average they were able to talk to
If the value 9 is also increased to 20, would the boxplot find two outliers?- If the value 8 is also increased to 20, would the boxplot find all three outliers?
A sales analyst wants to determine whether there is a difference in the mean monthly sales of a company's four sales regions. Several salespersons from each region are randomly selected and they provide their sales amounts (in thousands of dollars..
What is the importance of the OC curve in the selection of sampling plans? Describe the impact of the sample size and the acceptance number on the OC curve.
A medical researcher is interested in whether patient's left arms or right arms are longer. if 14 patients participate in this study (so that n left arms and n right arms are measured), how many degrees of freedom should the researcher use in her ..
Establish a 99% confidence interval for the difference in the proportion of suburban and urban housewives who own IPod.
Describe a psychological research situation or scenario that would use a nonparametric test. Why would the nonparametric test be used?
Find a 90% confidence interval for the population mean salary of such personnel. What is the margin of error.
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