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Concept explainers
Salmonella in produce. Salmonella infection is the most common type of bacterial food-borne illness in the United States. How prevalent is salmonella in produce grown in the major agricultural region of Monterey, California? Researchers from the U S Department of Agnculture (USDA) conducted tests for salmonella in produce grown in the region and published their results in Applied and Environmental Microbiology (April 2011). In a sample of 252 cultures obtained from water used to Irrigate the region. 18 tested positive for salmonella In an independent sample of 476 cultures obtained from the region’s wildlife (e.g., birds), 20 tested positive for salmonella. Is this sufficient evidence for the USDA to state that the prevalence of salmonella in the region’s water differs from the prevalence of salmonella in the region’s wildlife? Use α = .01 to make your decision
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Chapter 8 Solutions
Statistics for Business and Economics, Student Value Edition (13th Edition)
- South Africa faces the triple challenge of poverty, inequality and unemployment and the national minimum wage debate has pulled on all three threads to make arguments for and against this policy. Discuss the theoretical implications of a national minimum wage, and touching on each of the three challenges South Africa faces, discuss some arguments for how this policy may affect them.arrow_forwardIn the context of the article below, discuss the Minister’s position in light of the principles of fairness as they relate to taxation. SA's work visa reform plans slowed by tax issues South Africa’s plan to attract more professionals to its skills-starved economy through the introduction of a so-called nomad visa for remote workers has been slowed by the need to amend tax regulations. The impediment comes after an initial delay when changes to the visa regime had to be temporarily withdrawn because mandatory public consultation procedures hadn’t been followed. President Cyril Ramaphosa announced his intention to introduce a remote-working visa in his 2022 state-of-the-nation address. “There is just a tax-related matter that needs to be addressed in the regulations,” Leon Schreiber, the country’s Home Affairs Minister, said in a response to queries. “Once that is done, the department will commence with the rollout.” South Africa’s byzantine work permit regime, which means…arrow_forwardAssume that an economy has an inflationary gap. Compare the use of fiscal policy with the use of monetary policy to remove the gap. Assume a closed economy. Use graphs to illustrate.arrow_forward
- Suppose Person A is looking for a health insurance plan on Oregon's health insurance marketplace and they find one with the following details: Monthly Premium: $331 Deductible: $5,000 Primary care visit to treat injury or illness: $35 copay Imaging (CT/PET Scans MRIs): 40% coinsurance after deductible Ambulance: 40% coinsurance after deductible Inpatient hospital stay: 40% coinsurance after deductible Suppose further that Person A purchases this plan and it takes effect in January 2022. The cost Person A pays per month for this health insurance is equal to _. Person A must pay. before coinsurance kicks in. 0000 $35; $5,000 $35; $331 $331; $5,000 $331; $35 Multiple Choice 1 point Suppose Person A is looking for a health insurance plan on Oregon's health insurance marketplace and you find one with the following details: Monthly Premium: $331 Deductible: $5,000 Primary care visit to treat injury or illness: $35 copay Imaging (CT/PET Scans MRIs): 40% coinsurance after deductible Ambulance:…arrow_forwardUse the figure below to answer the following question. Point X and Y represent two non-ideal contracts that the individual is faced with buying. From this information, you can conclude that if given the option between points B and Y the individual would prefer: Utility A у в 0000 UKI) E[Bp IH point B- the actuarially fair and full contract point Y-the actuarially unfair but full contract point Y- the actuarially fair, but partial contract point B- the actuarially fair, but partial contract incomearrow_forward2. Another issue facing millennials is the growing income and wealth inequality. We will use our model to understand the implications of this issue. A. Begin from the baseline preferences and endowments. Assume Xavier is wealthier than Yuri. Xavier has an endowment of 1100 pounds for each period (E1=E2=1100). Yuri has an endowment of only 900 pounds in each period (E1=E2=900). Note that each period's market supply is unchanged (1100 + 900 = 1000 + 1000 = = 2000). Determine the equilibrium interest rate. r = % B. Begin from the baseline preferences and endowments. Assume Yuri is wealthier than Xavier. Xavier has an endowment of only 900 pounds in each period (E1=E2=900). Yuri has an endowment of 1100 pounds for each period (E1=E2=1100). Note that each period's market supply is unchanged (1100 + 900 = 1000 + 1000 = 2000). Determine the equilibrium interest rate. r = % C. Begin from the baseline preferences and endowments. A third person named Zena joins our economy. Zena is very…arrow_forward
- Use the figure below to answer the following question. Let I represent Income when health, let Is represent income when ill. Let E[I] represent expected income. Point D represents Utility 100000 B у いいつ income есва Ін Is the expected utility from income with no insurance an actuarially fair and partial contract an actuarially fair and full contract an actuarially unfair and full contract an actuarially unfair and partial contractarrow_forwardOutline the principles of opportunity cost and comparative advantage. Describe how these principles can be applied to address the scarcity of resources in a real-world scenario involving a company or industry.arrow_forwardNot use ai pleasearrow_forward
- 3. Consider the case of everyone being wealthier in the future, such as from a positive productivity shock (computers, internet, robotics, AI). A. Begin from the baseline preferences and endowments. Give both people an endowment of 1000 pounds for the first period and 1100 pounds for the second. AI increases the supply of second period goods by 10%. Note that there is now a total of 2000 pounds in the first period and 2200 pounds in the second. Determine the equilibrium interest rate. r = % B. Begin from the baseline preferences and endowments. Give both people an endowment of 1100 pounds for the first and 1100 pounds for the second periods. AI increases the supply in all periods by 10%. Note that there are now 2200 pounds in the first period and 2200 pounds in the second. Determine the equilibrium interest rate. r = % C. Explain how productivity and the real rate are connected. Write at least five sentences.arrow_forwardNot use ai pleasearrow_forwardNot use ai pleasearrow_forward
- Managerial Economics: Applications, Strategies an...EconomicsISBN:9781305506381Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. HarrisPublisher:Cengage LearningManagerial Economics: A Problem Solving ApproachEconomicsISBN:9781337106665Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike ShorPublisher:Cengage Learning
- Exploring EconomicsEconomicsISBN:9781544336329Author:Robert L. SextonPublisher:SAGE Publications, Inc
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