20 problems, Applied Statistics

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T test, What is an example of a real life situation when I would use each o...

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Determine the matrix of the transformation, Consider the linear transformat...

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Standard cost method, Under the standard cost method which is also referred...

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Find the unbiased estimators for mean and variance matrix, Is the random ve...

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Probability, In 120 tosses of a coin, 45 heads and 75 tails are observed. ...

In 120 tosses of a coin, 45 heads and 75 tails are observed. Is this a balanced coin? Use a=0.05. (Follow the basic steps of hypothesis testing)

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