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From a random sample we know that the average duration of unemployment in a low developed region A is 147 days (with standard deviation sA = 32 days and nA = 230 unemployed). Another random sample from a high developed region B reveals an average duration of unemployment of 96 days (with standard deviation sB = 43 days and nB = 180 unemployed). Is the duration of unemployment in region A significantly higher than in region B? Calculate also the p-value (p-Wert, empirisches Signifikanzniveau) of the test statistic.
In this research report you will be analysing a set of data of which can be found in an EXCEL file available for download in the Assessment section of the Blackboard site.
Interpret the correlation between each set of variables.
What can we say about the form or way of the distribution of the average or median of the sample?
Suppose the probability of the worst-case scenario increases Compute the expected value of perfect information
The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100.
What is the number of personnel records that should be sampled, at minimum, to satisfy the requirements?
Ryan is planning to finance her college education by selling programs at the football games for her team. there is a fixed cost of $400 for printing these programs, and the variable cost is $3.
Drawing the standard normal curve and indicating the area representing the probability and
A local consultant randomly selects a sample of 36 meals whose mean price is determined to be $8.75. Assuming that σ = $0.75, calculate a 95% confidence interval for the population mean price.
Calculate and plot t he new supply schedule and indicate the new equilibrium price and quantity on your diagram
What is the probability of a type 1 error in this situation? What does it mean?
To find out the prior probability, conditional probability and posterior probability. Calculate the posterior probability that the bid will be successful given a request for additional information.
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