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A corporation has 15,000 employees. Sixty-two percent of the employees are male. Twenty-three percent of the employees earn more than $30,000 a year. Eighteen percent of the employees are male and earn more than $30,000 a year.
A) If an employee is taken at random, what is the probability that the employee is female OR earns more than $30,000 a year?
B) The employee taken at random turns out to be female. Compute the probability that she earns more than $30,000 a year (to 4 decimals).
Three couples attend a dinner. Each of the six people chooses randomly a seat at a round table. What is the probability that no couple sits together?
1st a confidence interval is constructed without utilizing the finite population correction factor.
Mean output of solar cells of three types are measured six times under random light intensity over a period of 5 minutes, yielding the results shown. Research question: Is the mean solar cell output the same for all cell types?
for a particular age group of adult males, the distribution of cholesterol readings, in mg/dl, is normally distributed with a mean of 210 and a standard deviation of 15. What percentage of this population would have readings exceeding 250?
Discuss the issue of statistical power in non-parametric tests (as compared to their parametric counterparts). Which type tends to be more powerful? Why?
A random sample of 400 college students was selected and 120 of them had at least one motor vehicle accident in the previous two years.
given that x1x2x3 and x4 are independent random variable with mean 2 and variance 4 find ey and ez for y3x4-x10.2x3z
A two-tank system containing a heated liquid has the model shown in Figure DP9.9 (a), where T0 is the temperature of the fluid flowing into the first tank and T2 is the temperature of the liquid flowing out of the second tank.
on a multiple choice test with 11 questions each question has four possible answers one of which is correct. for
A month later, the reading skills of all 100 students are assessed to determine whether the program was successful. What are the two populations of interest in this study?
the following data represents the mean august temperature fahrenheit in 20 us cities 64 64 68 69 70 71 71 72 74
Researchers surveyed 60 men and 60 women from 17 to 30, most of them Yale students. They were separated into three groups. One group was questioned about times.
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