Question:

1. ... (c): Is it a proof of one or two tails? Argue, what is the decision rule? What is the value of the statistic of the test? What is your decision regarding Ho? Interpreter this value

1. A sample of 36 observations from a normal population is selected. Average Sample is 49, and the sample size, Of 36. The standard deviation of the Population is 5. Use the significance level of 0.05
   Ho: μ = 50
   H1: μ ≠ 50
2. A sample is selected of 36 observations from a normal population; Average Sample is 12, and the size of the sample, of 36. The standard deviation of the Population is 3. Use the significance level of 0.02.
   Ho: μ ≤ 10
   H1: μ > 10
3. A sample of 36 observations from a normal population is selected. Average Sample is 21, and the standard deviation of the population is 5. Use the Significance of 0.02.

Ho: μ ≤ 20

H1: μ > 20

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