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Question: What's your sign? The University of Chicago's General Social Survey (GSS) is the nation's most important social science sample survey. For reasons known only to social scientists, the GSS regularly asks a random sample of people their astrological sign. Here are the counts of responses from a recent GSS:
If births are spread uniformly across the year, we expect all 12 signs to be equally likely. Do these data provide convincing evidence that all 12 signs are not equally likely? If you find a significant result, perform a follow-up analysis.
Suppose that it takes at least 9 votes from a 12-member jury to convict a defendant. Suppose the probability that a juror votes a guilty person innocent is 0.2.
the players college and the projected draft position for seven players from each conference are as follows. the
The pie chart below shows how the annual budget for a certain company is divided by department. If the total budget is 125,000,000, what amount is budgeted for Support, Sales, and Media combined?
a study of fast-food nutrition compared the caloric content of french fries. thirty-eight randomly selected servings of
Refer to a study published in the Journal of the American Medical Association and reported in the Sacramento Bee on January 26, 2000 ("Study Ties Hormone Replacement, Cancer" by Shari Roan, p. A1).- Do you think this research was an observational s..
Females and males alike from the general adult population volunteer an average of 4.2 hours per week. A random sample of 20 female college students and 18 male college students indicated these results concerning the amount of time spent in volunte..
consider the following hypothesis test.h0 u1-u2 0ha u1-u2 not equal to 0the following results are for two independent
1. Explain in your own words the role that data can play in the development of models of uncertainty in decision analysis.
If x is the sample mean time for a random sample of n = 9 students, where is the x distribution centered, and how much does it spread out about the center (as described by its standard deviation)?
The cost per unit for ecah product, given each contract result, is shown in the following payoff table. Determine which product should be produced, using the following decision criteria.
Finding probability for the given values of the uniform density curve
Use the following four regions in a single contingency table analysis: Northeast (CT, MA, ME, NH, NJ, NY, PA, RI, VT), Central (IA, IL, IN, KS, MI, MN, MO, ND, NE, OH, SD, WI), Conduct a chi squared test to determine is the region effects the use ..
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