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Suppose that the probability that a child living in an urban area is the US is obese is 20%. A social worker sees 15 children living in urban areas.
What is the probability that none are obese?
Is there any statistically significant difference in how the drugs perform? If so, explain the effect. Use the post hoc tests as needed and write up the results using APA style and interpret them.
The lives of many people are affected by a fear that prevents them from flying. The Marist Institute for Public Opinion conducted a poll of 1014 adults
q1 a doctor wants to know if there is a relationship between a fathers weight and his first newborn sons weight.
A car insurance compancy has recorded the number of claims for the past quarter by age and gender. The information is recorded below.
While in July the mean high temperature is 74oF and the standard deviation is 8oF. In which month is it more unusual to have a day with a high temperature of 55oF?
Why is population shape of concern when estimating a mean? What does sample size have to do with it?
An independent financial advisor claims an average rate of return, μ, on a particular investment is at least 7%. In testing her claim, the correct pair of hypotheses is:
Determine the probability that a randomly selected sample of 31 patients would produce an average diameter of 6.6 mm or less for the non affected tendon?
Population standard deviation of 5 and you select a sample size of 100, what is the probability that the sample mean is between 47 and 49.5?
The time between arrivals of cars at the Petroco Service Station is defined by thw following probability distribution.
State the multiple regression equation. Interpret the meaning of the slopes in the equation. Predict the salary for a 40-year-old male employee with 5 years of experience.
We are interested in testing to find out whether the variance of the population is vitally more than 0.003
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