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Question: Sociologists make a profile of the attitudes of a group by asking each individual to rate his or her tolerance of people in particular categories. For example, members might be asked to assess, on a scale of 1-7, their tolerance of prostitutes, atheists, former mental patients, intellectuals, college graduates, and so on. The mean score for each category is then calculated and the categories are ranked from low to high. When 18 categories of people were ranked by a group of people who owned businesses and also by a group of college students, an rs of .753 between the rankings was found.
For a binomial with n = 20 and p = .7, determine the mean and variance of pˆ, the proportion of observed successes.- For a binomial with n = 30 and p = .3, determine the mean and variance of pˆ.
iq data is thought to be normally distributed with a mean of 100 and a standard deviation of 15. using the emperical
Estimate and interpret the p-value of the calculated test statistic.
a fair coin is tossed 20 times and x6 heads are observed. let pphead. a test of hop.5 versus ha plt.05 is to be
Your friend Elizabeth is the owner of a trendy delicatessen in downtown Seattle, Washington called Zeli's Deli, which is actually stationed on a food truck.
Construct the 95 percent confidence interval for the difference between the two population means.
Find out a plausible value r for correlation between vehicle weight and miles per gallon (mpg) shown in the scattergram below?
The average range found over these samples is 0.15 gallons. What is the upper control limit for the averages in this process?
For cause 3, 60% of the failures in any year occur 1/4 of the way through the year and the other 40% occur 3/4 of the way through the year. Find formulas that give the unprimed rates in terms of the primed.
Determine the value of x2 for 14 degrees of freedom and an area of .10 in the left tail of the chi-square distribution curve. What is the value of chi-square?
Why would a researcher have more than two levels of the independent variable in an experiment?- What is a factorial design? Why would a researcher use a factorial design?
In your own words, define epistemology and ontology. Why are these concepts important to the study of research? How might the concepts influence your future research?
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