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An aerospace company has submitted bids on two separate federal government defense contracts. The company president believes that there is a 39% probability of winning the first contract. If they win the first contract, the probability of winning the second is 75%. However, if they lose the first contract, the president thinks that the probability of winning the second contract decreases to 48%.
A. What is the probability that they win both contracts?B. What is the probability that they lose both contracts?C. What is the probability that they win only one contract?
Employ the table of standard normal probabilities (z table) to answer the following questions.
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Construct the following confidence intervals for your data set:
What maximum variance of the raw score population could you have and still be able to reject the null hypothesis of μ = 20 (α = .05), if the sample size is 100 and the sample mean is 22?
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If we assume that the errors made by rounding off are iid and have a uniform distribution over the interval ( - ~, ~), compute approximately the probability that the sum of the integers is within two units of the true sum.
Do the data indicate that the sleeping pill is effective at a 1% level of significance?
If someone had x=2 job changes, what does the least squares line predict for y, the annual salary?
The average height of flowering cherry trees in a nursery is 11 feet. If the heights are normally distributed with a standard deviation of 1.6, find the probability that a randomly selected cherry tree in this nursery is less than 13 feet tall.
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