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If a recent news report indicated that out of 105 people polled, 65 men and 15 women had given the president a high approval rating, while 15 men and 10 women had given the president a low approval rating. A chi-square test yields these results: X squared = 8.33, df = 1, p<.01. What is the conclusion?
Assume the arrival of these emails i3 approximated by the Poisson distribution.
If no calls are currently being processed, what is the probability the agent can take 3 minutes for personal time without being interrupted?
Assistant dean use a sample of application to determine whether the mean examination score for freshman application has changed. State the hypothesses.
Calculate the MEAN and STANDARD DEVIATION for the distribution below:
Solve different inventory control problems using an appropriate OR method.
Assume Nick doesn't know how his received he suppose that all three states of nature are equally likely to occur. If Nick uses the equally likely criterion illustrate what decision would he make.
Compute mean and standard deviation for sample of N = 8 females and sample of N = 8 for males.
The city of Laguna Beach operates two public parking lots. The one on Ocean drive can accommodate upto 125 cars and the one on Rio Rancho can accommodate upto 130 cars.
A CFR system with λ = 0.0004 has been operating for 1000 hr. What is the probability that it will fail in the next 100 hr? The next 1000 hr?
Standard deviation was increased to 40, determine the overall effect on their society? Would this change be a good thing?
A video rental store has two video cameras available for customers to rent. Historically, demand for cameras has followed this distribution:
A contractor is considering a sale that promises a profit of $37,000 with a probability of 0.7 or a loss of (due to bad weather and such) of $18,000 with a probability of 0.3. What is the expected profit?
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