Question 8 Assuming an R0=7.7 for Measles, what percentage of the population needs to be vaccinated to achieve herd immunity? Round to the nearest whole percentage. V= (1-(1/7.7))*100=______
V= (1-(1/7.7))*100
V = (1 - 0.12987) * 100
V = 0.87013 * 100
V = 87.013
ie V = 87 %
Question 8 Assuming an R0=7.7 for Measles, what percentage of the population needs to be vaccinated...
Herd immunity fails if at least what percentage of a population is unvaccinated? A. 10% B. 1% C. 5% D. 20% 2. Which of the following statements about HIV is false? A. HIV attacks mast cells. B. HIV replicates inside helper T cells. C. The genome of HIV consists of RNA. D. Some drugs have proven effective in combating the spread of HIV from mothers to their children. PLEASE HELP ASAP
the population standard deviation is 6.84 days, assuming a 95% confidence, what sample size would be required to obtain a margin of error of 2 days? (Remember to round up to the nearest whole number for sample size.)
QUESTION 1 their equity multiplier will be. Assuming all positive values, the larger the value of the leverage ratio for a bank, the O larger O smaller QUESTION 2 Assuming a bank has cash reserves to start with, at the moment a depositor comes in and withdraws the deposit they had previously made with the bank, the bank's cash reserves decrease. O True O False QUESTION 3 Given a one year treasury bond with a face value of $100 and...
QUESTION 1 Assuming all positive values, the larger the value of the leverage ratio for a bank, the their equity multiplier will be. larger O smaller QUESTION 2 Assuming a bank has cash reserves to start with, at the moment a depositor comes in and withdraws the deposit they had previously made with the bank, the bank's cash reserves decrease. True False QUESTION 3 Given a one year treasury bond with a face value of $100 and a price of...
QUESTION 53 What is the relative probability that a 65 keV x-ray interacting photoelectrically with some contrast agent, (Zeff = 64) compared with soft tissue (Zeff = 7.7) ? Round your answer to the nearest whole number. 1 points Save Answer
Construct the confidence interval for the population mean μ c: 0.95, x-16.8, σ: 9.0, and n-100 A 95% confidence interval for μ is OD (Round to one decimal place as needed.) 6.1.27 Use the confidence interval to find the margin of error and the sample mean (1.58,2.06) The margin of error is (Round to two decimal places as needed) 6.1.31 Find the minimum sample size n needed to estimate μ for the given values of c, o, and E. cz...
8.2.27 Question Help o What sample size is needed to estimate a population mean within 50 of the true mean value using a confidence level of 95%, if the true population variance is known to be 140,6252 The sample size must be at least (Round up to the nearest whole number)
A manufacturer of generator shafts finds that it needs to add additional weight to its shafts in order to achieve proper static and dynamic balance. Based on experimental tests, the averagee weight it needs to add is u=39 gm with o = 10 gm. Assuming a normal distribution, from 1000 randomly selected shafts, how many would be expected to need an added weight in excess of 48 gm? What integral gives the probability that a generator shaft in the random...
Question 4 [10 Marks] The table below shows the percentage of population below poverty level in ten localities, as determined in the years 1990 and 1998. Locality 1 2 3 4 5 6 7 8 9 10 1998 11.6 9.8 10.1 8.7 20.4 11.2 13.1 10.4 16.6 13.7 1990 7.5 13.4 13.7 10.7 20.9 11.5 14.4 13.1 13.7 16.2 Is this paired or unpaired data? Calculate the summary statistics relevant to this problem. Compute a 95% confidence interval for the...
Assuming that the population is normally distributed, construct a 99% confidence interval for the population mean for each of the samples below. Explain why these two samples produce different confidence intervals even though they have the same mean and range. Sample A: 1 3 3 4 5 6 6 8 Sample B: 1 2 3 4 5 6 7 8 Full data set Construct a 99% confidence interval for the population mean for sample A (Type integers or decimals rounded...