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The total kinetic energy distribution in the gas comprising of N molecules is characterized by following characteristic function: f_Ekin (ω) = 1/ (1- ikTω )^(3N/2) .
Determine the first two cumulants also the ratio between the standard deviation and average energy. Explain why distribution becomes extremely narrow with N →∞.
Assuming no discrimination based on gender, what is the probability of getting 41 or fewer women when 100 new employees are hired?
Calculate the standard error. With 95% confidence, find out the margin of error?
SmartPeople is an organization that only admits people with IQ's in the top 98 percentile. What IQ score would a person need to be a member of SmartPeople?
Part 1. What is the appropriate distribution for such data? Part 2. Is this lot anomalous?
The sample data are summarized by the statistics n = 27, x = 4.6 years, s- 1.9 years.
How does bell-shaped curve for sampling distribution of sample means for samples of size n =120 compare tobell-shaped curve for sampling distribution of sample means for samples of size n =95?
A researcher predicts that watching a film on institutionalization will change students' attitudes about chronically mentally ill patients.
A sustained long-term change in the level of the variable that is being forecasted per unit of time is: (A trend, A time series, Seasonality or A change due to business cycles)
The local operations manager for the IRS must decide whether to hire 1, 2, or 3 temporary workers. He estimates that net revenues will vary with how well taxpayers comply with the new tax code.
A researcher was interested in the emotional effects of music on exam performance. Before their exam, a professor took one group of students into a room in which calming music was played.
Formulate the null and alternative hypotheses for this application.
Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major.
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