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In a population of 1,000 subjects, 800 are unemployed. In the same population, 700 of the subjects are males. Of the males, 600 are unemployed.. Let M= the event that a person is male and E= the event that a person is employed. Suppose that a person is picked at random.
What is the probability that the person is a male or employed (or both)?
define the random variable x to be the time you get home on thursday.a is x a discrete or continuous random variable?
a shipment of assorted nuts is labeled as 45 walnuts 20 hazelnuts 20 almonds and 15 pistachios by count. a random scoop
in a region 80 of the population have brown eyes. if the 10 people are randomly selected find the probability that at
one-sixth of the male freshmen entering a large state school are out-of-state students. if the students are assigned at
question 1 i. we are conducting a two tailed hypothesis test at a 1 significance level to test that the mean of a
suppose weights of the checked baggage of airline passengers follow a nearly normal distribution with mean 46 pounds
explain why increasing the sample size tends to result in a smaller sampling error when a sample mean is used to
chi-square test for goodness of fit.there are four entrances to the government center building in downtown
a regional survey of 560 companies asked the vice president of operations how satisfied he or she was with the software
suppose we want a 90 confidence interval for the average amount of time in minutes spent per week on homework by the
Identify the null hypothesis, alternative hypothesis, test statistic, p-value or critical value, and the conclusion about the null hypothesis. Use the P-value method.
What are the five steps in the hypothesis testing procedure, what does each step represent, what are the advantages and disadvantages of using a hypothesis testing procedure?
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