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(1 point) A sample of 4 measurments, randomly selected from a normally distributed population, resulted in a sample mean, E = 9.5 and sample standard

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(1 point) A sample of 4 measurments, randomly selected from a normally distributed population, resulted in a sample mean, E = 9.5 and sample standard deviation 5 = 1.95. Using a = 0.05, test the null hypothesis that the mean of the population is 7.8 against the alternative hypothesis that the mean of the population, [4

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