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A particular district of your nation had a higher incidence rate for polio last year compared to the rest of the country. That region has been traditionally been resistant to vaccination efforts. You have commissioned a case-control study for the village to evaluate the situation after a recent outbreak of the disease in the area to measure vaccination status among the 63 poliomyelitis cases and 126 age- and neighborhood-matched controls. Cases were found to be under-vaccinated through routine immunization (matched odds ratio [MOR], 0.3; 95% confidence interval [CI],0.1-0.5).a. What do the odds ratio and given confidence interval indicate? (3 points)The matched odds ratio 0.3 indicated that vaccination was associated with 70%decrease in the risk of poliomyelitis and the 95% confidence interval [0.1 - 0.5]indicated that we are 95% confident that vaccination was associated with [50% to90%] decrease in the risk of poliomyelitis. B. How was the odds ratio calculated? (3 points)There are 4 possible outcomes with respect to the matched pair:⇒ Case exposed; Control exposed⇒ Case exposed; Control not exposed⇒ Case not exposed; control exposed⇒ Case not exposed; control not exposed Let u is the number of pairs in which "Case exposed; Control not exposed" and v is the number of pairs in which "Case not exposed; control exposed".Odds Ratio = u/v = 0.3
Elaborate on u and v in my calculation; where would these fit on a 2x2 table?; I must explain the statistics to an understandable level in a press release.
problem1 1. using if filter the data for these students into a column which contains the heights of only female
A paper company is interested in estimating the proportion of trees in a 500-acre forest with diameters exceeding 2 feet. The company selects 25 plots (100 feet by 100 feet) from the forest and utilizes the information from the 25 plots to help..
question 1 variable xx lt- c3 4 8 4 2 1 0 6 variable yy lt- c1 2 4 2 2 0 1 4 calculate z-scores for all values in the
Mars, Inc. claims that 24% of its M&M plain candies are blue. A sample of 100 M&Ms is randomly selected. Find the mean and standard deviations for the number of blue M&Ms in such a group of randomly selected 100 candies.
How many categories in the ACME transportation table are qualitative and what is the average number of merchandise per order, for all orders? Round to the nearest integer and what is the standard deviation of all orders in this sample?
Create the indicator variables, the raw data does not include these - calculate a difference in the gscores between the consecutive rows; this is how we know if the Gleason score has increased since the last biopsy, which is one of the indicators f..
1)What is the number of Observations in the sample? Write the least squares regression (prediction) equation. Test the usefulness of variable x2 in the model at alpha =.05. Calculate the t statistic and state your conclusions
Approximately 10% of people are left-handed. If two people are selected at random, what is the probability of the following events?a. Both are right-handed.b. Both are left-handed.c. One is right-handed and the other is left-handed.
Is Crosset's experience different from that claime
Discuss the importance of obtaining a random sample.
1. Provide a recommendation to the president that maximizes profits
Why is it important for a security professional to know specifics about the particular target environment to which they are assigned? How can experienced security professionals prepare themselves for challenges and opportunities they have never encou..
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