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A public library carries 50 magazines, each of which focuses on either news or sports. Thirty of the magazines focus on news and the remaining 20 focus on sports. Among the 30 news magazines, 20 include international news and 10 include national, state, or local news only. Among the 20 sports magazines, 5 focus on international sports, and the remaining 15 focus on national, state, or local sports.
a. Create a table illustrating these numbers, with type of magazine (news, sports) as the row variable.
b. A customer randomly picks a magazine from the shelf and notices that it is a news magazine. Given that it is a news magazine, what is the probability that it includes international news?
c. What proportion of the magazines include international news or international sports?
What percent of total applicants were admitted?- Overall, was a higher percentage of males or females admitted?- Compare the percentage of males and females admitted in each program.
To evaluate the effect of a treatment , a sample of n=9 is obtained from a population with a mean of m=40 and the treatment is administered to the individuals is found to be M-33
1. What is the probability that at least one of the bonds defaults? 2. What is the probability that neither the seven-year AA-rated bond nor the seven-year A-rated bond defaults?
In the proof of Theorem 2 we determined the quantity E[X(X - 1)], called the second factorial moment. In general, the rth factorial moment of X is given by
What is the decision rule and What is your decision regarding H0 - The value of the test statistic is . (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)
a. Portland Co. is not subject to translation exposure since it has no foreign subsidiaries.
Write a Matlabprogram that generates and graphs the noisy cosine sample paths Xcc(t), Xdc(t), Xcd (t), and Xdd (t) of Figure 10.3. Note that the mathematical definition of Xcc(t) is
a cast a die a number of independent times until a multiple of 3 appears on the top side of the die. find the
1. (Computer Experiment.) Compare the risk of the mle and the James- Stein estimator (12.12) by simulation. Try various values of n and various vectors θ. Summarize your results.
The dynamic analyzer shown in Figure E8.10 (a) can be used to display the frequency response of a system. Also shown is the signal analyzer used to measure the mechanical vibration in the cockpit of an automobile.
a coach uses a new technique in training middle distance runners. the times for 8 different athletes to run 800 meters
given the following sample data 104 110 114 97 105 113 106 101 100 107a give a point estimate of the population
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