Implement the following one-sided lower hypothesis test: H0: mu = 1.17 H1: mu < 1.17 The population standard deviation is sigma = 2.20 Compute x Compute z0 Find zalpha for a confidence level of alpha = 0.06 Based on your values of z0 and zalpha , would you reject H0? What is the P-value for your z0? -1.55 2.84 2.28 -3.04 1.09 -0.16 -1.39 1.16 4.69 0.87 -2.08 0.55 2.27 4.31 1.83 -3.24 4.61 1.15 -2.46
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17 and the population standard deviation is 2.20, we can use the formula for the z-score: z = (x - μ) / (σ) where z is the z-score, x is the sample mean, μ is the population mean, and σ is the population standard deviation. Since we are testing the hypothesis that Show more…
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Consider the following hypothesis test: H0: μ ≤ 12 Ha: μ > 12 A sample of 25 provided a sample mean x̄ = 14 and a sample standard deviation s = 4.32. a. Compute the value of the test statistic (to 2 decimals). 2.31 b. Use the t distribution table (Table 2 in Appendix B) to compute a range for the p-value. The p-value is between 0.01 and 0.025 c. At α = 0.05, what is your conclusion? Reject null hypothesis d. What is the rejection rule using the critical value? (Use α = 0.05.) Reject H0 if t is greater than or equal to the critical value of (to 3 decimals). Can you conclude that the population mean is greater than 12? Yes
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