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Thirteen students were randomly selected from the College of Public Health and their diastolic blood pressure was tested. The sample mean and standard deviation were 80.9 mmHg and 2.1 mmHg respectively. What is the obtained t-score for this sample under the null hypothesis Ho: µ = 80?
Why you have chosen to investigate these two independent variables? How do you think they will affect your dependent variable?
If a random student is chosen what is the probability that he or she scores less than 59? What score indicates that the student has to retake the exam?
You have administered a standardized test of manual dexterity to two groups of 10 semi skilled workers. One of these two groups of workers will be employed by you to work in a warehouse with many fragile items.
An immediate adjustment will be made on any tire that does not last 50,000 miles." You purchased four of these tires. What is the probability that all four tires will last more than 50,000 miles?
People assigned to assemble circuit boards for a computer manufacturing company under go on the job training. From past experience it was found that the learning curve for the average employee is given by:
Developing a linear programming problem using Commuter Bus scheduling to minimize the total cost.
Set up a hypothesis test to validate this claim. Using a significance level of .01 to test this hypothesis, what is your decision rule
Suppose that X1, X2, X3, X4 are independent U (0, 1)-distributed random variables and let (X(1), X(2), X(3), X(4)) be the corresponding order statistic. Compute
which of the following pearson correlations shows the greatest strength or consistency of
Suppose the mean cannot be adjusted but the standard deviation can be reduced. What maximum value of the standard deviation would make 90% of the parts acceptable to the consumer? (Assume the mean to be 1.012)
country number of numbers drawn range of numbersunited kingdom 6 1 to 49finland 7 1 to 39florida 5 1 to 36assuming one
a medical research team studied the number of head and neck injuries sustained by hockey players. of the 319 players
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