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Question: Describe the unethical behavior, if any, in each example and describe how it could impact the reliability of the resulting data. Explain how the problem should be corrected. A study is commissioned to determine the favorite brand of fruit juice among teens in California.
a. The survey is commissioned by the seller of a popular brand of apple juice.
b. There are only two types of juice included in the study: apple juice and cranberry juice.
c. Researchers allow participants to see the brand of juice as samples are poured for a taste test.
d. Twenty-five percent of participants prefer Brand X, 33% prefer Brand Y and 42% have no preference between the two brands. Brand X references the study in a commercial saying "Most teens like Brand X as much as or more than Brand Y."
If the same hypothesis is tested often enough, it is likely to be rejected at least once, even if it is true. A professor of biology, attempting to demonstrate this fact, ran white mice through a maze to determine if white mice ran the maze faster..
A group of investigators are interested in conducting a clinical trial to determine whether taking bio-identical treatments prevents postmenopausal osteoporosis
a. Develop a scatter diagram. b. Show correlation at the 0.05 significance level. c. Develop the regression line for the data. d. Add the regression line to your scatter diagram.
find the minimum sample size n needed to estimate u for the given values of c s and ec 0.98 s6.4 e1assume that a
for the z-score equation if given the standard deviation as well as n how do we know whether to make the standard
You will perform the non-parametric version of the tests you used in Activity 4. In each case, assume that you opted to use the non-parametric equivalent rather than the parametric test. Using the data files from earlier activities, complete the foll..
during the national football league nfl season las vegas oddsmakers establish a point spread on each game for betting
A study of 20 worldwide financial institutions shows the correlation between their assets and pretax profit to be .86. At the .05 significant levels, can we conclude that there is positive correlation in the population?
What is the purpose and function of The ?eld of study of statistics?
certain kinds of tumors tend to recur. the following data represent the lengths of time in months for a tumor to recur
The article "Psychiatric and Alcoholic Admissions Do Not Occur Disproportionately Close to Patients' Birthdays" (Psychological Reports, 1992: 944-946) focuses on the existence of any relationship between the date of patient admission for treatment..
an airplane holds 20 passengers. the probability a passenger will not show up is .1a. if the airline sells 25 tickets
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