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- A cell phone company offers 6 different voice packages and 8 different data packages. Of those, 3 packages include both voice and data. How many ways are there to choose either voice or data, but not both?In the past few weeks people have been arguing on the social media forum https://www.reddit.com/r/ontario/ about whether the COVID-19 situation in Ontario was improving or getting worse. Some users call those who focused on high spikes in new cases "doomers" (as in "ok doomer") such as the 460 new cases on Sunday May 24. Recently the numbers of new cases have gone down to 287 on Tuesday the 26th and 292 for Wednesday the 27th. Date # of New Cases 27-May 292 26-May 287 25-May 404 24-May 460 23-May 412 22-May 441 21-May 413 Data from https://data.ontario.ca/dataset/status-of-covid-19-cases-in-ontario,more easily-visible on https://news.google.com/covid19/map?hl=en-CA&gl=CA&ceid=CA%3Aen&mid=%2Fm%2F05kr_. You will be answering the following questions about this data: What is the mean number of new cases of COVID-19 in Ontario over the 7 day period indicated? What is the standard deviation for these cases? What is the…Governor Andy Beshear stated that COVID-19 is disproportionately affecting the AfricanAmerican community in Kentucky. As of April 21, there are 144 deaths from COVID-19 where the race of the patient is known, and of those 20 are African-American. AfricanAmericans make up 8% of the population of Kentucky overall. Does this information indicate that African-Americans in Kentucky are dying from COVID-19 at a disproportionate rate? Use an α = 0.05 significance level to test this claim. (d) What is the P-value?(e) Write a brief summary of your conclusion.
- Once QBA 362 final exam is done, it will be time to reward Professor Hong with a well-deserved vacation. As a state employee, professor Hong hasn’t seen a raise since... well, ever.Thus, an important criterion, in fact the most important criterion is to find an exoticregion that can be visited inexpensively. There are three states of nature that could impact costs in these five areas of interest. Professor Hong has determined the average cost per day to visit each region under each of the possible states of nature. This table, which should not be construed as actual vacation advice, appears below. (Remember they are costs. Lower is better. For example, the most optimistic case is the one with lowest cost.) Region Strong Dollar Middling Dollar Weak Dollar Eastern Europe 33 54 57 Southeast Asia 41 56 36 Australia 45 44 58 Galapagos Islands 37 35 26…A television network earns an average of $65 million each season from a hit program and loses an average of $25 million each season on a program that turnsout to be a flop. Of all programs picked up by this network in recent years, 30% turn out to be hits; the rest turn out to be flops. At a cost of C dollars, a market research firm will analyze a pilot episode of a prospective program and issue a report predicting whether the given program will end up being a hit. If the program is actually going to be a hit, there is a 65% chance that the market researchers will predict the program to be hit. If the program is actually going to be a flop, there is only a 40% chance that the market researchers will predict the program to be a hit. a. What is the maximum value of C that the network should be willing to pay the market research firm? b. Calculate and interpret EVPI for this decision problem.A television network earns an average of $65 million each season from a hit program and loses an average of $25 million each season on a program that turns out to be a flop. Of all programs picked up by this network in recent years, 30% turn out to be hits; the rest turn out to be flops. At a cost of C dollars, a market research firm will analyze a pilot episode of a prospective program and issue a report predicting whether the given program will end up being a hit. If the program is actually going to be a hit, there is a 65% chance that the market researchers will predict the program to be a hit. If the program is actually going to be a flop, there is only a 40% chance that the market researchers will predict the program to be a hit.
- An instructor teaches three introductory Medicine sections covering the same material. He has made up a different final exam for each section. Still, he suspects that one of the versions is more difficult than the other two. he decides to experiment to evaluate the difficulty of the exams. He randomly selects five volunteers for each class during the review period just before finals. Class 1 volunteers are given version 1 of the exams, Class 2 volunteers get version 2, and Class 3 volunteers receive version 3. Of course, all volunteers are sworn not to reveal any of the exam questions, and also, all of the volunteers will receive a different final exam from the one they took in the experiment. The following are the results. Does this study suffice the assumptions in employing One-way ANOVA in interpreting the results? Explain why or why not?what about the probably of getting 2 soft balls without replacementAccording to http://www.gasandoil.com/goc/news/ntl50398.htm , accessed on Feb 2, 2005, “17-12-04 Jamaica has found signs of oil in 10 exploratory wells drilled into deep underground structures. Now it's come to Houston looking for oil companies willing to help the island nation, which depends heavily on tourism, bauxite and alumina, to become the world's next oil and natural gas producer. Hopeful Jamaican officials traveled to Houston promoting the nation's first formal license round, offering 22 offshore blocks and four on-shore blocks. "There are plenty of reserves yet to be found -- exploration in new frontiers is now warranted," said Raymond Wright of the Petroleum Corporation of Jamaica, reflecting on the world's supply dilemma. Oil explorers order seismic tests to determine whether oil is likely to be found in a certain drilling area. These seismic tests have a known reliability: When oil exists the tests indicate so 85% of the time and when oil does not exist the…
- 22. Is there multicollinearity in the model? Yes, No or Cannot be determined?There's a math processing error on G and H, could you please fix that?A case-control study is being planned to see whether proximity to a nuclear power plant is associated with the development of certain cancers. 200 cases and 200 controls will be recruited and the distance from the nearest nuclear power plant will be dichotomized as close (< 3 miles) or far (≥ 3 miles). Use SAS to complete each problem below. (a) It is believed that about 4% of controls live close to the plant and the OR that investigators would be interested in detecting is 3.5. Assuming that a 2-sided, 5% level test will be conducted, what power will the test have for detecting a significant association between cancer and proximity to the power plant? (b) If we still assume a 2-sided, 5% level test, the same exposure probability among controls, same OR, and equal numbers of cases and controls, what will the sample size need to be to have a power of 80%? (c) Since investigators find it very difficult to recruit cases, they decide to recruit three times as many…