Do you think the debate about the COVID 19 vaccine will lead to people feeling apprehensive about other vaccines in the future? Do you think more vaccine hesitancy will become the norm? Why or why not?
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Do you think the debate about the COVID 19 vaccine will lead to people feeling apprehensive about other vaccines in the future?
Do you think more vaccine hesitancy will become the norm? Why or why not?
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- 9:14 ← Week 1: Quiz 2 of 19 gas and oil companies O deli stores Current Attempt in Progress A news report states that sales of U.S. homes declined 3% during the previous month. Which type of business would be most likely to include this information in their business decisions? Save for Later car manufacturer lumber company business attire - / 2.5 + LTE 95 13: Attempts: 0 of 2 used Submit Answer 5 SUPPORT2. A group of doctors at a specific hospital believes that the normal survival rate for patients with extensive burns will significantly increase with the use of new fluid plasma compresses. Before the new treatment, the survival rate for extensive burn patients at the hospital was about 40%. Using the new compresses, the hospital found that 48 out of 90 patients with extensive burns survived. Does this provide sufficient evidence for the hospital to try to market the new fluid plasma compresses to other hospitals? Answer this question using a = 0.05.According to the Pew research center 65% of US adults believe that the government should play a larger role in addressing climate change. A random sample (SRS) of 80 US adults found that 56 US adults believe that the government should play a larger role in addressing climate change. Does this indicate that population proportion of US adults who believe that the government should play a larger role in addressing climate change is MORE THAN 65%? Given: a= 0.05 level 1. List your oH and aH: (symbols and words) 2. State and Check the conditions for the test: 3. Use the information in question: Identify the hypotheses being tested: Find your SE and test statistic by hand: 4. Use the information in question: State your conclusion given 05.0 level, in a complete sentence, in the context of the problem. 5. Use the information in question. Find the 95% confidence interval by hand using: Given z*=1.96
- A certain financial services company uses surveys of adults age 18 and older to determine if personal financial fitness is changing over time. A recent sample of 1,000 adults showed 410 indicating that their financial security was more than fair. Suppose that just a year before, a sample of 700 adults showed 245 indicating that their financial security was more than fair. (a) State the hypotheses that can be used to test for a significant difference between the population proportions for the two years. (Let p1 = population proportion most recently saying financial security more than fair and p2 = population proportion from the year before saying financial security more than fair. Enter != for ≠ as needed.) H0: Ha: (b) Conduct the hypothesis test and compute the p-value. At a 0.05 level of significance, what is your conclusion? Find the value of the test statistic. (Use p1 − p2. Round your answer to two decimal places.) Find the p-value. (Round your answer to…with written work10
- A national standard requires that public bridges over 20 feet in length must be inspected and rated every 2 years. The rating scale ranges from 0 (poorest rating) to 9 (highest rating). A group of engineers used a probabilistic model to forecast the inspection ratings of all major bridges in a city. For the year 2020, the engineers forecast that 6% of all major bridges in that city will have ratings of 4 or below. Complete parts a and b. a. Use the forecast to find the probability that in a random sample of 7 major bridges in the city, at least 3 will have an inspection rating of 4 or below in 2020. P(x≥3)=It has been observed that some persons who suffer colitis, again suffer colitis within one year of the first episode. This is due, in part, to damage from the first episode. The performance of a new drug designed to prevent a second episode is to be tested for its effectiveness in preventing a second episode. In order to do this two groups of people suffering a first episode are selected. There are 55 people in the first group and this group will be administered the new drug. There are 45 people in the second group and this group will be administered a placebo. After one year, 11% of the first group has a second episode and 9% of the second group has a second episode. Conduct a hypothesis test to determine, at the significance level 0.1, whether there is reason to believe that the true percentage of those in the first group who suffer a second episode is different from the true percentage of those in the second group who suffer a second episode? Select the [Alternative Hypothesis,…Q4
- In the Spring and Summer of 2020, mass protests erupted across the US in response to police violence against African Americans. At the same time, the US was experiencing a COVID-19 pandemic. Many public health experts wondered whether participating in these protests (exposure) would be associated with being diagnosed with COVID-19 (outcome). Imagine you have been hired to draft a plan to study this potential association. Which study design would you choose? (Almost any design is okay). Explain the factors that influenced why you selected that one. Include some of the benefits/drawbacks of your selected study design and the benefits/drawbacks of the study designs you did not select. Write your research question and make a hypothesis about the results. Briefly describe how you would conduct your study, including Recruitment strategy and a number of participants (Be sure you have people in all 4 boxes of the 2x2 table!) Measure of association to be used (RR/OR) Potential confounding…Tom Tucker, a robust 50-year-old executive living in the northern suburbs of St. Paul, has been diagnosed by a University of Minnesota internist as having a decaying liver. Although he is otherwise healthy, Tucker’s liver problem could prove fatal if left untreated. Firm research data are not yet available to predict the likelihood of survival for a man of Tucker’s age and condition without surgery. However, based on her own experience and recent medical journal articles, the internist tells him that if he elects to avoid surgical treatment of the liver problem, chances of survival will be approximately as follows: only a 60% chance of living 1 year, a 20% chance of surviving for 2 years, a 10% chance for 5 years, and a 10% chance of living to age 58. She places his probability of survival beyond age 58 without a liver transplant to be extremely low. The transplant operation, however, is a serious surgical procedure. Five percent of patients die during the operation or its recovery…Answer the following True or False: A hypothesis test was conducted to see if a new HIV vaccination reduces the risk of contracting the HIV virus. The implication of a Type Il error from the clinical trial is that the vaccination will not be approved when it indeed does reduce the risk of contracting the HIV virus. true O false