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Suppose that 60 percent of 1000 randomly selected U.S. adults say that they take part in some form of daily activity to keep physically fit. Based on this finding, find a 95 percent confidence interval for the proportion of all U.S. adults who would say they take part in some form of daily activity to keep physically fit. Based on this interval, is it reasonable to conclude that more than 50 percent of all U.S. adults would say they take part in some form of daily activity to keep physically fit?
Formulate an integer programming model, and solve it using EXCEL.
What would be the Mode in this set of numbers? 2, 2, 0, 5,1, 4,1, 3, 0, 0, 1, 4, 4, 0,1, 4, 3, 4, 2, 1
Given a normally distributed variable (x), if you know that for a value of x = 244 the z-score = 2.20, what is the probability of any x value being above 244?
What is the difference in proportions in the original data and what is the p-value and what does it mean in terms of this specific problem
Your colleagues conducted a cohort study to examine the association between alcohol consumption and heart disease. The risk ratio obtained was 9.2, when comparing those reporting high levels of alcohol consumption with those reporting abstinence or l..
In the general population one in 8 women will develop breast cancer. 1 in 550 carries the mutationBRCA gene. 9 out of 10 women with this mutation will develop breast cancer.
What are the mean earnings of males and females in this sample? Does the regression result support the claim in the news and You decide to control for age (in years) in your regression results because older people, up to a point
The following table gives the data for per capita income in thousands of US dollars with the percentage of the labor force in Agriculture and the average years of schooling of the population over 25 years of age for 15 developed countries in 20..
1 let x1 be a random variable with probability function given in the table belownbsp nbsp nbsp nbsp nbsp nbsp nbspnbsp
The total costs of a proposed project consist of fabrication costs and installation costs. Each cost is uncertain. Fabrication costs Probability Installation costs Probability $MM % $MM % 10 40% 5 25% 20 50% 10 60% 50 10% 30 15% 3.1. Assume that ther..
an experiment is conducted in which 60 participants each fill out a personality test but not according to the way they
A manufacturer of potato chips would like to know whether its bag filling machine works properly at the 409 gram setting. It is believed the machine is underfilling the bags. A 35 gram bag sample had a mean of 404 grams. A level of significance of 0...
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