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A sample space consists of five simple events, E1, E2, E3, E4, and E5.a If P(E1) = P(E2) = 0.15, P(E3) = 0.4, and P(E4) = 2P(E5), find the probabilities ofE4 and E5.b If P(E1) = 3P(E2) = 0.3, find the probabilities of the remaining simple events if youknow that the remaining simple events are equally probable.
While taking a multiple choice test, I realize I cannot answer the 5 questions without guessing. There are 5 choices for each question, A B C D or E.
Construct a payoff table for Mountain Ski's decision problem of how many pairs of skis to order. What is the best decision from an expected value basis?
What is the probability that a single student, randomly chosen from those taking the ACT, scores 21 or higher? What is the probability that the mean score x of a SRS of 50 students is 21 or higher?
The company statistician has reported the mean number of man-hours lost per month but did not keep a record of the total sum. Should the manager order the study repeated to obtain the desired information? Explain your answer clearly.
Our sample size is 17. Which value most accurately represents the critical value of Z that you would use to plug in for your interval?
let the number of phone calls received by a switchboard during a 5-minute interval be a random variable x with
what is the relationship between the confidence level and type i
Carry out a significance test for the hypothesis that the two tests have the same population mean. Give the P-value and state your conclusions.
The amounts were normally distributed with a standard deviation of 10 and 12 for men and women, what is the probability that man will spend at most an hour?
The mean is a useful measure, but it can be misleading. Describe a circumstance when the mean is very useful as the average and a circumstance when the mean is very misleading as the average.
Develop a linear trend equation for the time series. Graph the time series and the linear trend equation. What appears to be happening to capital expenditures? What is the forecast one year, or four quarters, into the future?
Does this mean immigrants tend to earn more than other people? Or does it mean immigrants improve a state's economy? If not, what could explain the correlation?
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