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Your supervisor has just stopped by your desk and is frantic. She has a meeting with the senior vice president in 25 minutes and has misplaced some data. She needs to report the fugacity of n-pentane at 192°C and 1.8 MPa in a mixture of 13.7 mol % n-pentane, 32.1 mol % n-butane, 21.5 mol % isobutane, and 32.7 mol % n-hexane, and the number needs to be as correct as possible. Calculate the value for the fugaciy of n-pentane in this mixture.
Create a deviation from mean for the temperature variables and create squared terms for each of the temperature variables in deviation from mean form.
Suppose that a large corporation surveys all of their employees, and finds that 24% of them carry secondary health insurance. A representative from GoldStar Care visits 100 employees
In past elections, the representative received 40 percent of the popular vote in that area of the state. She doubts whether it has changed much. How many registered voters should be sampled?
The mean sat verbal score is 401, with a standard deviation of 97. Use the empirical rule to determine what percent of the scores lie between 207 and 498.
The booked passengers actually arrive for the flight. Estimate the probability that if the company books 170 persons, not enough seats will be available.
What is the value of 1sigma 2sigma 3sigma 4sigma 5sigma 6sigma
In a recent poll, 126 people were asked if they liked dogs, and 6% said they did. Find the margin of error of this poll, at the 90% confidence level.
Estimate the mean height to within 3cm with 95% confidence. Assume the population standard deviation is about 12cm. What sample size should she use?
question a normally distributed population has a mean of 40 and a standard deviation of 12. what does the central
you are rolling a 6-sided die but you dont know whether its fair or not. you know that that are only two kinds of dice
In a study, 37% of adults questioned reported that their health was excellent. A researcher wishes to study the health of people living close to a nuclear power plant.
The National Association of Realtors Existing-Home Sales Series provides a measurement of the residential real estate market. One of the measurements it produces is the Housing Affordability Index (HAI), which is a measure of the financial ability..
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