Joe American goes to Europe. How much must Joe pay in dollars to get 100 euros? Country Currency We buy We sell USA Dollar 1.5 1.3 Ex: 105 : dollars
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A: See attached file for a step by step explanation.
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Q: Joe American goes to Europe. How much must Joe pay in dollars to get 80 euros? Country Currency We…
A:
Q: Joe American goes to Europe. How much must Joe pay in dollars to get 80 euros? Country Currency We…
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- Our results significantly significant why or why not? Make generic decisions and make conclusion in context? A researcher evaluates a new cholesterol medication by measuring cholesterol levels for a group of patients before they begin taking the medication and after they have been taking the medication for 8 weeks. A second researcher measures quality of life for a group of 40-year-old men who have been married for at least 5 years and a group of 40-year-old men who are still single. Explain why the first researcher is probably not concerned about the validity of the measurement, whereas the second researcher probably is. (Hint: What variable is each researcher measuring and how will it be measured?)Imagine that the incidence of gun violence is compared in two cities, one withrelaxed gun laws (A), the other with strict gun laws (B). In the city with relaxedgun laws, there were 50 shootings in a population of 100,000 and in the other city,10 shootings in a population of 100,000. Show contingency table and MedCalcresults. What is the relative risk of gun violence in the city with relaxed gun laws (A)? What is the relative risk of gun violence in the city with strict gun laws (B)? What questions need to be asked before concluding that there is anassociation between shootings and gun laws?
- Access the significsnce of each of the variables in the attached table. For age, write out all of the steps for hypothesis testing. For the other variables, report a p-value and conclusion. Write out the interpretation of the hazards ratios for age and sex in words. What is the estimated hazard ratio for a 10-year increase in age?In this study, the protection of aquatic ecosystems is an important goal of Ville de Montréal. In particular, Thomas wants to see whether the contamination of creeks (ruisseaux in French) by Escherichia coli differs among the months of May, June, July, and August. Therefore, herandomly samples six creeks in different areas. For each creek, he collects water samples from May to August, and measures the amount of E. coli, expressed in colony-forming units (CFU) per 100 mL of water. For each combination of a month and a creek, he thus obtains an E. coli contamination value, i.e., 24 observations in total. A preliminary statistical analysis produces the following results. Which pairs of months show significant differences in mean E. coli contamination? Explain your reasoning and justify your answer to this question with the results of a statistical procedure. Use α = 0.05.In this study, the protection of aquatic ecosystems is an important goal of Ville de Montréal. In particular, Thomas wants to see whether the contamination of creeks (ruisseaux in French) by Escherichia coli differs among the months of May, June, July, and August. Therefore, herandomly samples six creeks in different areas. For each creek, he collects water samples from May to August, and measures the amount of E. coli, expressed in colony-forming units (CFU) per 100 mL of water. For each combination of a month and a creek, he thus obtains an E. coli contamination value, i.e., 24 observations in total. A preliminary statistical analysis produces the following results. Which pairs of months show significant differences in mean E. coli contamination? Explain your reasoning and justify your answer to this question with the results of a statistical procedure. Use α = 0.05. Data: May= 66, June= 104, July=105, August= 88
- In this study, the protection of aquatic ecosystems is an important goal of Ville de Montréal. In particular, Thomas wants to see whether the contamination of creeks (ruisseaux in French) by Escherichia coli differs among the months of May, June, July, and August. Therefore, herandomly samples six creeks in different areas. For each creek, he collects water samples from May to August, and measures the amount of E. coli, expressed in colony-forming units (CFU) per 100 mL of water. For each combination of a month and a creek, he thus obtains an E. coli contamination value, i.e., 24 observations in total. A preliminary statistical analysis produces the following results. Part A: Does the mean E. coli contamination differ significantly among the four months? Justify your answer to this question with the result of a statistical test. Use α = 0.05. Part B:Which pairs of months show significant differences in mean E. coli contamination? Explain your reasoning and justify your answer to this…Among individuals who eat a healthy diet and exercise frequently the point prevalence of hypertension is 0.09. Individuals subject to poverty, making it more difficult for them to eat a healthy diet and exercise frequently, have a 0.31 point prevalence for hypertension. What is the risk difference between the two groups? 0.29 0.76 0.78 0.22The IMF declared in June 2022 that "the world's slowest roads are found in the poorest countries--yet another impediment to economic development." They utilized Google Maps to calculate the average time it takes to drive between large cities at least 80 kilometers apart. Your team, as a researcher with another international organization, wants to see if there are any disparities based on continent classifications. Despite the fact that you do not have access to the same data, your team was able to determine that the average permissible speed in urban areas (in kilometers) for a sample of 21 Caribbean countries is 42.57km. It is worth noting that the allowable speed in Caribbean countries varies by 74 km2. Your team leader has requested that you answer the following questions. a) According to the IMF, the world's fastest roads are found in wealthy countries such as Portugal, Saudi Arabia, and Canada. If the average speed in these countries' urban areas is 48.33, use an acceptable…
- Several methods of estimating the number of seeds in soil samples have been developed by ecologists. An article gave the accompanying data on the number of seeds detected by the direct method and by the stratified method for 27 soil specimens. Specimen Direct Stratified 1 21 6 2 32 38 3 0 6 4 60 58 5 20 52 6 61 61 7 40 26 8 6 6 9 12 6 10 92 100 11 1 0 12 66 58 13 78 66 14 21 52 Specimen Direct Stratified 15 32 26 16 0 0 17 38 38 18 18 12 19 92 92 20 1 12 21 40 46 22 21 21 23 0 0 24 6 12 25 12 40 26 18 12 27 40 78 Do the data provide sufficient evidence to conclude that the mean number of seeds detected differs for the two methods? Test the relevant hypotheses using ? = 0.05. (Use ?direct − ?stratified.) Find the test statistic. (Round your answer to two decimal places.) t = Find the df. (Round your answer down to the nearest whole number.) df = Use technology to find the P-value. (Round your answer to four…I need help on how to answer this step by step using the data for repeated measures designs and the 4 step hypothesis.A social worker notes that in a population of psychiatric inpatients the ethnic mix seems out of balance with what she has understood to be the ratios in the general population. Respond to the prompts below to show how she might determine whether the inpatient ethnic mix varies from the mix in the general population. Write an example of how the null and alternative hypotheses for this test could be stated. What would the researcher need to know in order to calculate the appropriate test statistic? I.e., what values need to be known or calculated in order to complete the calculation of the test statistic?