Compute the confidence interval

Reference no: EM131397218

1. Given that X = 120, σ = 5, n = 49 and α = 0.05, test H₀: µ > 130, assuming observations are randomly sampled from a normal distribution.

2. For the previous exercise, compute a 0.95 confidence interval and compare the result with your decision about whether to reject H₀.

Reference no: EM131397218

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