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A random sample of 16 male JSS students in town A and another independent random sample of 12 male JSS students in town B were drawn. An aptitude test was given to the students to measure their level of mental health. The results are shown in the table below.
A survey of engineering firms reveals that 80% have their own mainframe computer (M); 10% anticipate purchasing a mainframe computer in the near future
Construct the sampling distribution of the proportion of milk chocolate candy bars.
your manager who just read an abridged version of a statistics book wants you to test hypotheses for the difference in
q1-write introduction to spc statistical process control?q2-describe the use of spc tools used at d2d?q3-how could
If the salaries are normally distributed with a standard deviation of $5000 (s = 5000), find the probability that:
the national high school sports database reports that players of lacrosse average 55 goals per season. the standard
What is the probability that a prisoner who succeeded in escaping used road C?
What is the required sample size for determining the proportion of defective items in a production process if the proportion is to be known to within 0.05.
Let X be the number of coin tosses until heads is obtained. Suppose that the probability of heads is unknown in the sense that we consider it to be a random variable Y ∈ U (0, 1).
(a) At the 5 percent level of significance, is the true mean smaller than the specification? Clearly state your hypotheses and decision rule.
If there are 70 people in the class, what is the probability that I win the bet?
Estimate the mean study time for the population of all students. What is the probability that the sample mean exceeds the population mean by more than 2 hours?
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