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A university club consists of 4 men and 6 women. Two members are chosen at random without replacement. Let X = 0 if first person chosen is male, 1 if first person chosen is female. Y = 0 if second person chosen is male, 1 if second person chosen is female.
1) Find the joint probability distribution function.
2) Find the marginal probability distribution on y.
Is there evidence of difference in mean life of bulbs produced by the two kinds of machines. What is your conclusion?
How would the General Counsel's decision in Part (b) change if the cost of selling the second suit were only $200,000? What if the cost were $900000?
If we want to estimate the populations mean travel-to-work time San Francisco residents with a margin of error of 1 minute, what sample size should be used? Assume 95 percent confidence.
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
What is critical z-value which corresponds to confidence level of 88%.
a) Do a test to see if workers attitudes on this matter have changed using a 90% alpha. b) Explain to management what your findings are and what this suggests about future decisions vs work options.
What quantitative method can be applied to help the Department make the decision? Outline how this method can be applied and explain how a qualitative method can also be applied to help the Department make the decision
The following data from a sample of 100 families show the record of college attendance by fathers and their oldest sons: in 22 families, both father and son attended college; in 31 families, neither father nor son attended college; in 12 families,..
The first unit produced after the calibration effort to be found to be defective. What is the probability that machine is in adjustment?
Assume the population is normally distributed, the confidence level is 95%, n = 12, and σ is unknown.
The Type 1 error states the probability of being wrong whenever:
Here is a two-way table showing enrollment data for full-time undergraduate students in U.S. colleges and universities. The entries are thousands of students:
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