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TESTS OF THE EQUALITY OF TWO NORMAL DISTRIBUTIONS

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(The material is from TESTS OF THE EQUALITY OF TWO NORMAL DISTRIBUTION. Please use technological device to solve/draw if you need (preferably Excel or Mathematica), please explain your solution and provide the evidence of your work. I am providing the final answers from the textbook, so please compare your answers. Thank you.)

a) Define the test statistic and critical region for testing H0 against Ha.

b) Use the following to calculate the value of the test statistic.

c) Construct two box plots on the same graph.

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The expert examines the tests of the equality of two normal distributions. Two plots on the same graph are constructed.

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(The material is from TESTS OF THE EQUALITY OF TWO NORMAL DISTRIBUTION. Please use technological device to solve/draw if you need (preferably Excel or Mathematica), please explain your solution and provide the evidence of your work. I am providing the final answers from the textbook, so please compare your answers. Thank you.)

The Final Answers:

I put the data in Excel.

a) We will be doing a one-tailed two-sample z-test. If you look at a z-distribution table, you'll see that the critical value of z (using a significance level ...

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