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Construct Fisher's Ideal Index for the given information and check whether Fisher's. formula satisfies Time Reversal and Factor Reversal Tests.
In a report on high school graduation, it was stated that 85% of high school students graduate. Suppose 3 high school students are randomly selected from different schools. What is the probability t
Find the probabilities ofE4 and E5.b If P(E1) = 3P(E2) = 0.3, find the probabilities of the remaining simple events if youknow that the remaining simple events are equally probable.
The emergency room at HSI serves patients who arrive according to a Poisson distribution at the rate of 9 per hour. Treatment takes an average of 6 minutes and the treatment times can be considered
The government lawyer disagrees, saying that the probability of this particular jury composition is common. What do you think?
BMI in children is approximately normally distributed with a mean of 24.5 and a standard deviation of 6.2. A BMI between 25 and 30 is considered overweight. What proportions of children are overwei
The probability that Sammy makes his own lunch is 0.75. The probability increases to 0.8 if he made his own lunch the day before. Find the probability that he will not make his lunch tomorrow.
An elementary school class ran 1 mile in an average of 11 minutes with a standard deviation of 3 minutes. Who is the fastest runner with respect to his or her class? Explain why?
The following data were collected in a study relating hypertensive status measured at the baseline to incident stroke over 5 years. 1) Compute the Cumulative incidence of stroke in the study.
In a survey of 100 business executives, 60 per cent were male and 40 per cent were female. 70 per cent of the male executives used a PDA. Overall, 60 per cent of the executives used a PDA. Consturc
The goal is to assign workers to jobs so as to minimize the total time required to perform the four jobs. Use the Hungarian method to solve the problem.
At one year, an additional 24 have developed hypertension and at 2 years another 16 have developed hypertension. What is the prevalence of hypertension at 2 years in the study?
Before burning out, a light bulb gives X hours of light, where X is N(500, 400). If we have 3 bulbs, what is the probability that they will give a total of at least 1,460 hours of light?
Compute the Relative Risk of coronary artery disease in patients receiving the new medication as compared to placebo.
Find the probbility that supply is insufficient to meet demand. What is the expected number of items sold? What is the variance of the number of items sold?
The following data were collected in a clinical trial to compare a new drug to a placebo for its effectiveness in lowering total serum cholesterol. Generate a 95% confidence interval for the proport
Given a level of confidence of 95% and a population standard deviation of 13, answer the following:
If the due date of this project is set at 40 weeks, what is the probability that the contractor will have to pay a penalty (i.e., the project will not be finished on schedule)?
A randomized controlled trial is run to evaluate the effectiveness of a new drug for asthma in children. A total of 250 children are randomized to either the new drug or placebo (125 per group).
Based on comparing the computed chi square with the critical value for chi square which if the following is (are) true
Estimate a linear probability model with smoker as the dependent variable and the following regressors: smkban, female, age, age2, hsdrop, hsgrad, colsome.
Scores on an English test are normally distributed with a mean of 32.3 and a standard deviation of 7.3. Find the 40th percentile.
The volumes of soda in quart soda bottles are normally distributed with a mean of 32 oz. and a standard deviation of 1.2 oz. What percentage of soda bottles will have a volume less than 31.58 oz.?
Find P83, the 83-percentile of the distribution of temperature readings. This is the temperature reading separating the bottom 83% from the top 17%.
Is there a statistically significant difference in the proportions of women delivering preterm among the three treatment groups? Apply the test at a 5% level of significance.