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The 95% confidence interval for the mean is [50.5,56.5] with data from a normal distribution with...

The 95% confidence interval for the mean is [50.5,56.5] with data from a normal distribution with known standard deviation. How a hypothesis test is run at alpha = 0.05 using H0: mu = 49 against H1: mu != 49. Find the test statistic value z for the test.

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Hence the value of Test Statistic is 2.93994669

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