solve 3x^2-2x+1 when x=-3
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Could you solve 3x^2-2x+1 when x=-3
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Post a 3-paragraph analysis of weighting in secondary data that includes the following:An explanation about the importance of weighting in secondary dataTwo examples of how you might use weighting. (For each example, provide a rationale for the weighting.)Support your post with the Learning Resources and current literature. Use APA formatting for your Discussion and to cite your resources.Resources Fuller, C. H. (1974). Weighting to adjust for survey nonresponse. Public Opinion Quarterly, 38(2), 239–246.Larsen, J., Stovring, H., Kragstrup, J., & Hansen, D. G. (2009). Can differences in medical drug compliance between European countries be explained by social factors: Analyses based on data from the European Social Survey, round 2. BMC Public Health, 9, 145–150.Pike, G. R. (2008). Using weighting adjustments to compensate for survey nonresponse. Research in Higher Education, 49(2), 153–171.
Columbia Southern University Statistics Questionnaire
Problems need to include all required steps and answer(s) for full credit. All answers need to be reduced to lowest terms ...
Columbia Southern University Statistics Questionnaire
Problems need to include all required steps and answer(s) for full credit. All answers need to be reduced to lowest terms where possible. If showing the answer in %, have two decimal places.Answer the following problems showing your work and explaining or analyzing your results. Submit your work in a typed Microsoft Word document.A restaurant leaves a fishbowl on the counter for diners to drop their business cards. Once a month, a business card is pulled out to award one lucky diner with a free meal. Identify which type of sampling is used and why. (2 pts)A test of the effectiveness of a new curriculum could begin by dividing an area by school district, then choosing a school or set number of schools at random and sampling students from each. Identify which type of sampling is used and why. (2.5 pts)A survey about timekeeping might divide the population by time zone, then take 100 random samples per zone. Identify which type of sampling is used and why. (2.5 pts)A local TV station conducts an “Instant Poll” to predict the winner in the upcoming mayoral election. Evening news viewers were invited to phone in their votes, with the results to be announced on the late-night news. Based on the phone calls, the station predicted that Joseph Serra would win the election with 52% of the vote. They were wrong: Serra lost, getting only 46% of the vote. This faulty prediction may be the consequence of what kind of bias? (2.5 pts)According to Abyss Consulting, the average age of viewers of “America’s Got Talent” is 25 years old. However, the producer of the show thinks it is higher than 25.
Write the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)Is this a right-tailed, left-tailed, or two-tailed test? (2 pts)A research analyst believes that average back-to-school spending is less than a trade group’s prediction of $606.
Write the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)\Is this a right-tailed, left-tailed, or two-tailed test? (2 pts)\A study found that, in 2005, 12.5% of workers belonged to unions. Suppose a sample of 400 workers is collected in 2006 to determine whether union efforts to organize have increased union membership. The sample result show that 68 of the workers belonged to unions. State the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)Consider the null hypothesis Ho: The man is innocent of crime. Ha: The man is guilty of crime.
What is the Type I error? (2.5 pts)What is the Type II error? (2.5 pts)Using a random sample of n = 36, the sample mean is x ̅ = 2.92. Suppose that the population standard deviation is σ=0.18.Is the above statistical evidence sufficient to make the following claim:μ<3at the 5% level of significance?
Write the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)Calculate the standard error. (2.5 pts)Calculate the z score. (2.5 pts)Calculate the p value. (2.5 pts)What is the conclusion? (2 pts)Using a random sample of n = 50, the sample mean is x ̅ = 297.6. Suppose that the population standard deviation is σ=12.Is the above statistical evidence sufficient to make the following claim:μ>295 right tail, one tail at the 1% level of significance?
Write the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)Calculate the standard error. (2.5 pts)Calculate the z score. (2.5 pts)Calculate the p value. (2.5 pts)What is the conclusion? (2 pts)
A farm feed supply firm buys feed with an invoice date of April 19. The terms of
A farm feed supply firm buys feed with an invoice date of April 19. The terms of
sale are 3/15, n/30.
(a) Find the disco ...
A farm feed supply firm buys feed with an invoice date of April 19. The terms of
A farm feed supply firm buys feed with an invoice date of April 19. The terms of
sale are 3/15, n/30.
(a) Find the discount date. Find the net date of this invoice
Need assistance constructing and analyzing game trees from payoff matrices.
Need assistance constructing and analyzing game trees from payoff matrices.Need assistance constructing and analyzing game ...
Need assistance constructing and analyzing game trees from payoff matrices.
Need assistance constructing and analyzing game trees from payoff matrices.Need assistance constructing and analyzing game trees from payoff matrices.Instructions A telecom company is considering upgrading their infrastructure in your city and they have hired G&B consulting to help them determine their optimum strategy. The telecom company would be willing to invest in upgraded lines that offer higher speeds and bandwidth, but it is costly to do so and they are afraid they might make the investment but not have customers willing to upgrade their services which would be needed to recoup their profits. The alternative would be to keep the old infrastructure, but there are already a high amount of service complaints from the customer base. The telecom company needs to determine if investing in the improved service will pay off for them by having a sufficient amount of customers buy the upgraded service. The market research team working on the project creates this payoff matrix that represents the scaled values that customers give to the different levels of service and payouts for the telecom company: Telecom Company Upgrade Don't Upgrade Customers Buy (2, 2) (0, 3) Don't Buy (1, 0) (1, 1) You recognize that this is not a simultaneous game, and the payoff matrix is not the best form of analysis. Construct a game tree to model this scenario. Compose an email to your coworker to explain why a game tree should be used instead of this payoff matrix, and make a note of any cells that should be excluded. Perform backward induction on the game tree to find the optimum strategy. Show all work, including any payoff matrices and game trees used, all steps of backwards induction, and any necessary explanations with your solutions.
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Which of the following shows the correct first step when multiplying the numbers below using scienti
Which of the following shows the correct first step when multiplying the numbers below using scientific notation and prope ...
Which of the following shows the correct first step when multiplying the numbers below using scienti
Which of the following shows the correct first step when multiplying the numbers below using scientific notation and properties of exponents?(4.2 × 10^8)(3.6 × 10^-4)A. (4.2 × 3.6)(10^8 + 10^-4)B. (4.2 + 3.6)(10^8 × 10^-4)C. (4.2 + 3.6)(10^8 + 10^-4)D. (4.2 × 3.6)(10^8 × 10^-4)
5 pages
Comparing Data Sets.edited
Quantitative data are expressed numerically while qualitative data is described based on its properties, attributes or des ...
Comparing Data Sets.edited
Quantitative data are expressed numerically while qualitative data is described based on its properties, attributes or descriptive in nature for ...
Weighting Secondary Data
Post a 3-paragraph analysis of weighting in secondary data that includes the following:An explanation about the importanc ...
Weighting Secondary Data
Post a 3-paragraph analysis of weighting in secondary data that includes the following:An explanation about the importance of weighting in secondary dataTwo examples of how you might use weighting. (For each example, provide a rationale for the weighting.)Support your post with the Learning Resources and current literature. Use APA formatting for your Discussion and to cite your resources.Resources Fuller, C. H. (1974). Weighting to adjust for survey nonresponse. Public Opinion Quarterly, 38(2), 239–246.Larsen, J., Stovring, H., Kragstrup, J., & Hansen, D. G. (2009). Can differences in medical drug compliance between European countries be explained by social factors: Analyses based on data from the European Social Survey, round 2. BMC Public Health, 9, 145–150.Pike, G. R. (2008). Using weighting adjustments to compensate for survey nonresponse. Research in Higher Education, 49(2), 153–171.
Columbia Southern University Statistics Questionnaire
Problems need to include all required steps and answer(s) for full credit. All answers need to be reduced to lowest terms ...
Columbia Southern University Statistics Questionnaire
Problems need to include all required steps and answer(s) for full credit. All answers need to be reduced to lowest terms where possible. If showing the answer in %, have two decimal places.Answer the following problems showing your work and explaining or analyzing your results. Submit your work in a typed Microsoft Word document.A restaurant leaves a fishbowl on the counter for diners to drop their business cards. Once a month, a business card is pulled out to award one lucky diner with a free meal. Identify which type of sampling is used and why. (2 pts)A test of the effectiveness of a new curriculum could begin by dividing an area by school district, then choosing a school or set number of schools at random and sampling students from each. Identify which type of sampling is used and why. (2.5 pts)A survey about timekeeping might divide the population by time zone, then take 100 random samples per zone. Identify which type of sampling is used and why. (2.5 pts)A local TV station conducts an “Instant Poll” to predict the winner in the upcoming mayoral election. Evening news viewers were invited to phone in their votes, with the results to be announced on the late-night news. Based on the phone calls, the station predicted that Joseph Serra would win the election with 52% of the vote. They were wrong: Serra lost, getting only 46% of the vote. This faulty prediction may be the consequence of what kind of bias? (2.5 pts)According to Abyss Consulting, the average age of viewers of “America’s Got Talent” is 25 years old. However, the producer of the show thinks it is higher than 25.
Write the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)Is this a right-tailed, left-tailed, or two-tailed test? (2 pts)A research analyst believes that average back-to-school spending is less than a trade group’s prediction of $606.
Write the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)\Is this a right-tailed, left-tailed, or two-tailed test? (2 pts)\A study found that, in 2005, 12.5% of workers belonged to unions. Suppose a sample of 400 workers is collected in 2006 to determine whether union efforts to organize have increased union membership. The sample result show that 68 of the workers belonged to unions. State the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)Consider the null hypothesis Ho: The man is innocent of crime. Ha: The man is guilty of crime.
What is the Type I error? (2.5 pts)What is the Type II error? (2.5 pts)Using a random sample of n = 36, the sample mean is x ̅ = 2.92. Suppose that the population standard deviation is σ=0.18.Is the above statistical evidence sufficient to make the following claim:μ<3at the 5% level of significance?
Write the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)Calculate the standard error. (2.5 pts)Calculate the z score. (2.5 pts)Calculate the p value. (2.5 pts)What is the conclusion? (2 pts)Using a random sample of n = 50, the sample mean is x ̅ = 297.6. Suppose that the population standard deviation is σ=12.Is the above statistical evidence sufficient to make the following claim:μ>295 right tail, one tail at the 1% level of significance?
Write the null hypothesis Ho and alternative hypothesis Ha. (2.5 pts)Calculate the standard error. (2.5 pts)Calculate the z score. (2.5 pts)Calculate the p value. (2.5 pts)What is the conclusion? (2 pts)
A farm feed supply firm buys feed with an invoice date of April 19. The terms of
A farm feed supply firm buys feed with an invoice date of April 19. The terms of
sale are 3/15, n/30.
(a) Find the disco ...
A farm feed supply firm buys feed with an invoice date of April 19. The terms of
A farm feed supply firm buys feed with an invoice date of April 19. The terms of
sale are 3/15, n/30.
(a) Find the discount date. Find the net date of this invoice
Need assistance constructing and analyzing game trees from payoff matrices.
Need assistance constructing and analyzing game trees from payoff matrices.Need assistance constructing and analyzing game ...
Need assistance constructing and analyzing game trees from payoff matrices.
Need assistance constructing and analyzing game trees from payoff matrices.Need assistance constructing and analyzing game trees from payoff matrices.Instructions A telecom company is considering upgrading their infrastructure in your city and they have hired G&B consulting to help them determine their optimum strategy. The telecom company would be willing to invest in upgraded lines that offer higher speeds and bandwidth, but it is costly to do so and they are afraid they might make the investment but not have customers willing to upgrade their services which would be needed to recoup their profits. The alternative would be to keep the old infrastructure, but there are already a high amount of service complaints from the customer base. The telecom company needs to determine if investing in the improved service will pay off for them by having a sufficient amount of customers buy the upgraded service. The market research team working on the project creates this payoff matrix that represents the scaled values that customers give to the different levels of service and payouts for the telecom company: Telecom Company Upgrade Don't Upgrade Customers Buy (2, 2) (0, 3) Don't Buy (1, 0) (1, 1) You recognize that this is not a simultaneous game, and the payoff matrix is not the best form of analysis. Construct a game tree to model this scenario. Compose an email to your coworker to explain why a game tree should be used instead of this payoff matrix, and make a note of any cells that should be excluded. Perform backward induction on the game tree to find the optimum strategy. Show all work, including any payoff matrices and game trees used, all steps of backwards induction, and any necessary explanations with your solutions.
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