The following table gives a two-way classification of 400 randomly selected studentsbased on gender and whether they support, oppose, or don't care about Proposition G.Support Oppose Don't Care TotalMale 60 45 75 180Female 100 40 80 220Total 160 85 155 400(a) Find the conditional prob. that a r/s student supports Proposition G given that sheis a female.(b) Find the prob. that a r/s student is a female and opposes Proposition G.(c) Find the prob. that a r/s student either opposes Proposition G or is a female.

a) The two-way classification table is given.

Answered: The following table gives a two-way…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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In a survey of 1000 randomly selected adults in the United States, participants were asked what their most favorite and what their least favorite subject was when they were in school (Associated Press, August 17, 2005). In what might seem like a contradiction, math was chosen more often than any other subject in both categories! Math was chosen by 232 of the 1000 as the favorite subject, and it was also chosen by 366 of the 1000 as the least favorite subject. In USE SALT (a) Construct a 95% confidence interval for the proportion of U.S. adults for whom math was the favorite subject in school. (Give the answers to three decimal places.) (b) Construct a 95% confidence interval for the proportion of U.S. adults for whom math was the least favorite subject. (Give the answers to three decimal places.)
A special-interest group has conducted a survey concerning a ban on hand guns. Note: A rifle is a gun, but it is not a hand gun. The survey yielded the following results for the 1000 households that responded. 275 own a hand gun.431 own a rifle.493 supported the ban on hand guns.140 own both a hand gun and a rifle.199 own a rifle but no hand gun and do not support the ban on hand guns.78 own a hand gun and support the ban on hand guns.51 own both a hand gun and a rifle and also support the ban on hand guns. Exercise (a) How many of the surveyed households only own a hand gun and do not support the ban on hand guns? Exercise (b) How many of the surveyed households do not own a gun and support the ban on hand guns? Exercise (c) How many of the surveyed households do not own a gun and do not support the ban on hand guns?
a salesman believes that for a particular customer the probablities of making a sale is 0.4 . suppose the salesman has 5 customers he is waiting on what is the probablity he makes between 2 and 4 inclusive sales?
A sample of 320 people is surveyed. The people are classified according to political affiliation ("Democrat", "Republican", or "Independent"). They are also classified according to opinion on a bill ("in favor of", "opposed to", or "indifferent to"). The results are given in the contingency table below. In favor of Opposed to Indifferent to Democrat 35 48 40 Republican 50 24 50 Independent 37 20 16 Among the Republican respondents, what is the relative frequency of those who happen to be indifferent toward the bill? Round your answer to two decimal places.
A poll released this week found that in a random sample of registered voters, 60% indicated that they think a fenmale "will run" for the presidency, 30% said a female “will not run," and 10% had “no opinion." When asked their opinions on whether or not a female could be elected, 66% of those who said a female "will run" thought a female could be elected; 25% of those who thought a female "will not run" thought a female could be elected; whereas, 20% of those who had no opinion said 4. that a female could be elected. а. [2] What percentage of registered voters (in this sample) thought that a female could be elected? [2] Given that a person thought that a female could be elected, what is the probability that this person said a female "will not run" for the presidency? b. [3] Given that a person thought that a female could be elected, which is more likely: that this person said a female “will not run" for the presidency or that this person said a female “will run" for the presidency? C.
In a study of pain relievers, 50 people were given product A, and all but 10 experienced relief. In the same study, 20 people were given product B, and all but 3 experienced relief. Fill in the blanks below to make the most reasonable statement possible. Product ▼(Choose one) performed worse in the study. That is because % failed to get relief with this product, whereas only % failed to get relief with Product ▼(Choose one).
Suppose that there is a proposal on campus involving the bus schedule, in which students were asked aboutwhether they wanted Saturday bus service and/or late-night bus service. 50% favored Saturday service,57% favored late-night service and 30% favored both. How many favored neither?
Suppose a survey of 300 Ryerson University students was conducted to determine their smoking habits. How many students engaged in only one of the three behaviours? Use the information to below to help formulate your answer. • 90 smoke cigarettes, 18 use e- cigarettes, and 76 use marijuana • 62 smoke cigarettes and use marijuana • 8 smoke cigarettes and use e- cigarettes • 12 smoke marijuana and use e- cigarettes • 6 engage in all three behaviours
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What is your favorite color? A large survey of countries, including the United States, China, Russia, France, Turkey, Kenya, and others, indicated that most people prefer the color blue. In fact, about 24% of the population claim blue as their favorite color.t Suppose a random sample of n = 59 college students were surveyed and r = 8 of them said that blue is their favorite color. Does this information imply that the color preference of all college students is different (either way) from that of the general population? Use a = 0.05. A USE SALT (a) What is the level of significance? State the null and alternate hypotheses. O Ho: p = 0.24; H,: p + 0.24 O Họ: p = 0.24; H: p 0.24 (b) What sampling distribution will you use? O The standard normal, since np > 5 and ng > 5. The standard normal, since np 5 and ng > 5. The Student's t, since np < 5 and ng < 5. What is the value of the sample test statistic? (Round your answer to two decimal places.) (c) Find the P-value of the test statistic.…

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