Homework Answers
Add Answer to:
In a survey of 1000 eligible voters selected at rando found that 80% of those who had a college d...
In a survey of 1000 eligible voters selected at random, it was found that 200 had a college degree
In a survey of 1000 eligible voters selected at random, it was found that 200 had a college degree. Additionally, it was found that 90% of those who had a college degree voted in the last presidential election, whereas 46% of the people who did not have a college degree voted in the last presidential election. Assuming that the poll is representative of all eligible voters, find the probability that an eligible voter selected at random will have the following...
In a survey of 1000 eligible voters selected at random, it was found that 100 had...
In a survey of 1000 eligible voters selected at random, it was found that 100 had a college degree. Additionally, it was found that 70% of those who had a college degree voted in the last presidential election, whereas 45% of the people who did not have a college degree voted in the last presidential election. Assuming that the poll is representative of all eligible voters, find the probability that an eligible voter selected at random will have the following...
1.) Voting records show that 61% of eligible voters actually did vote in a recent presidential...
1.) Voting records show that 61% of eligible voters actually did vote in a recent presidential election. In a survey of 1002 people, 70% said that they voted in that election. Use the survey results to test the claim that the percentage of all voters who say that they voted is equal to 61%. Test the claim by constructing an appropriate confidence interval. What are the null and alternative hypotheses? What is the value of = significance level? Is the...
3.22 Exit poll: Edison Research gathered exit poll results from several sources for the Wisconsin recall...
3.22 Exit poll: Edison Research gathered exit poll results from several sources for the Wisconsin recall election of Scott Walker. They found that 52% of the respondents voted in favor of Scott Walker. Additionally, they estimated that of those who did vote in favor for Scott Walker, 33% had a college degree, while 43% of those who voted against Scott Walker had a college degree. Suppose we randomly sampled a person who participated in the exit poll and found that...
2.24 Exit poll: Edison Research gathered exit poll results from several sources for the Wisconsin recall...
2.24 Exit poll: Edison Research gathered exit poll results from several sources for the Wisconsin recall election of Scott Walker. They found that 55% of the respondents voted in favor of Scott Walker. Additionally, they estimated that of those who did vote in favor for Scott Walker, 32% had a college degree, while 42% of those who voted against Scott Walker had a college degree. Suppose we randomly sampled a person who participated in the exit poll and found that...
Match the formula of the test statistic to each scenario: A pollster is interested to find...
Match the formula of the test statistic to each scenario:
A pollster is interested to find if the proportion of female
voters and male voters who support Smith is the same. He polls 860
voters who indicated they intend to vote for Smith. Claim: the
proportion of males who support smith and females who support
Smither are the same.
An election for a Senate seat has two candidates; Smith and
Jones.
A pollster is interested in determining the
proportion...
Recently, Hector ran for president of the local school board. Of those who voted in the...
Recently, Hector ran for president of the local school board. Of those who voted in the election, 80% had a high school diploma, and the other 20% did not. Hector got 75% of the vote of those with high school diplomas, while he got only 25% of the vote of those without high school diplomas. Let D denote the event that a randomly chosen voter (in the school board election) had a high school diploma and D(overbar) denote the event...
QUESTION 1 College students Suppose a recent study of 1,000 college students in the U.S. found...
QUESTION 1 College students Suppose a recent study of 1,000 college students in the U.S. found that 8% of them do not use Facebook. Which of the following describes the population for this example? 1. All college students in the U.S. 2. The 1,000 college students who participated in the study, 3. All college students in the U.S. who do not use Facebook 4. The 8% of college students who do not use Facebook. QUESTION 2 Suppose you want to...
all answers ! 5. The actual time it takes to cook a ten-pound turkey is a...
all answers !
5. The actual time it takes to cook a ten-pound turkey is a normally distributed. Suppose that a random sample of 20 ten pound turkeys is taken with a sample mean of 2.9 hours and a sample standard deviation of 0.24 hours. Calculate a 95% confidence interval for the average cooking time of a ten pound turkey. 6. A recent Gallop poll showed Trump's approval rating 40% with a margin or error of 3%. a) Find the...
all answers please 3. The teachers union is concerned about the amount of time teachers spend...
all answers please
3. The teachers union is concerned about the amount of time teachers spend each week doing schoolwork at home. A simple random sample of 56 teachers had a mean of 8.0 hours per week working at home after school. Assume that the population standard deviation is 1.5 hours per week. a) Construct a 95% confidence interval estimate for the mean number of hours per week a teacher spends working at home. b) Does the confidence interval support...
3.22 Exit poll: Edison Research gathered exit poll results from several sources for the Wisconsin recall election of Scott Walker. They found that 52% of the respondents voted in favor of Scott Walker. Additionally, they estimated that of those who did vote in favor for Scott Walker, 33% had a college degree, while 43% of those who voted against Scott Walker had a college degree. Suppose we randomly sampled a person who participated in the exit poll and found that...
Match the formula of the test statistic to each scenario:
A pollster is interested to find if the proportion of female
voters and male voters who support Smith is the same. He polls 860
voters who indicated they intend to vote for Smith. Claim: the
proportion of males who support smith and females who support
Smither are the same.
An election for a Senate seat has two candidates; Smith and
Jones.
A pollster is interested in determining the
proportion...
QUESTION 1 College students Suppose a recent study of 1,000 college students in the U.S. found that 8% of them do not use Facebook. Which of the following describes the population for this example? 1. All college students in the U.S. 2. The 1,000 college students who participated in the study, 3. All college students in the U.S. who do not use Facebook 4. The 8% of college students who do not use Facebook. QUESTION 2 Suppose you want to...
all answers !
5. The actual time it takes to cook a ten-pound turkey is a normally distributed. Suppose that a random sample of 20 ten pound turkeys is taken with a sample mean of 2.9 hours and a sample standard deviation of 0.24 hours. Calculate a 95% confidence interval for the average cooking time of a ten pound turkey. 6. A recent Gallop poll showed Trump's approval rating 40% with a margin or error of 3%. a) Find the...
all answers please
3. The teachers union is concerned about the amount of time teachers spend each week doing schoolwork at home. A simple random sample of 56 teachers had a mean of 8.0 hours per week working at home after school. Assume that the population standard deviation is 1.5 hours per week. a) Construct a 95% confidence interval estimate for the mean number of hours per week a teacher spends working at home. b) Does the confidence interval support...
Most questions answered within 3 hours.
-
1a) According to the ideal gas law, _______________.
a. a gas has infinite volume at absolute...
asked 17 minutes ago -
Oakdale Fashions, Inc. had $245,000 in 2018 taxable income.
Using the tax schedule in Table 2.3...
asked 41 minutes ago -
The marketing class at CSUS had an average score of 150. An
educational analyst determined that...
asked 1 hour ago -
Justin Case has purchased a $250 000 home by putting 20 % down
and taking out...
asked 2 hours ago -
1. In a labor market, marginal cost for a firm is
____________.
a. recruiting cost
b....
asked 2 hours ago -
On January 1, 2019, ABC Company issued $60,000,000 of 20-year,
10.5% bonds when the market rate...
asked 3 hours ago -
39.4% of US homes continue to use a landline in addition to cell
phone service. 3...
asked 3 hours ago -
Starting with benzene, synthesize 1-phenyl-1-butyne.
Show intermediates and reagents.
asked 4 hours ago -
Create a 32-run crossed array design with six control factors
and two noise factors such that...
asked 5 hours ago -
A 500g sample of sand from source A has the following amounts
retained on each sieve....
asked 5 hours ago -
In
your own words, please explain the essay by John Keynes wrote "The
End of Laissez...
asked 5 hours ago -
How are the matrix and pixels related? Why are smaller
pixels better for diagnostic quality?
asked 5 hours ago