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A random sample of 1001 University of California faculty members taken in December 1995 was asked, "Do you favor or oppose using race, religion, sex, color, ethnicity, or national origin as a criterion for admission to the University of California?" (Roper Center, 1996). Fifty-two percent responded "favor."
a. What is the population for this survey?
b. What is the approximate margin of error for the survey?
c. Based on the results of the survey, could it be concluded that a majority (over 50%) of all University of California faculty members favor using these criteria? Explain.
Bob gets tests grades of 86, 92, and 60 He gets an 90 on his final exam. Find the weighted mean if each tests counts for 20%, and the final exam counts for 40% of the final grade.
Test claim that mean responses are same for all populations of patients receiving either treatment and of either gender.
You would like to know if operating red-light camera can actually reduce the number of traffic violation. We know that the average number of tickets before the implementation of red-light camera on daily basis was 15.
use normal approximation to estimate the probability of getting exactly 48 girls in 100 births. assume that boys and
a team of scientists is due to spend six months in antarctica carrying out research. one major piece of equipment they
assume that 64 of twins are of the same gender. given that a newborn set of twins is of the same gender what is the
Impact of Credit Crisis on Risk of Financing Homewood Co. commonly finances some of its U.S. expansion by borrowing foreign currencies (such as Japanese yen) that have low interest rates.
suppose that a particular candidate for public office is in fact favored by 48 of all registered voters in the
Suppose X is a binomial random variable with parameters n and p . -Find the PMF of a new random variable generated through the transformation, Y = n-x.
beth seths sister sells ice cream in the same area as he and her daily sales follow the same pattern as his namely a
Setup the alternative hypothesis that will test the claim that the percentage of women preferring white wine is 25% higher than men.
a sample of 90 women is obtained and their heights in inches and pulse rates in beats per minute are measured. the
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