Consider the following. (Give your answers correct to four decimal places.) (a) Find P(0.00 < z < 2.09). (b) Find P(-1.76 < z < 2.11). (c) Find P(z > 0.21). (d) Find P(z < 1.46).
Consider the following. (Give your answers correct to four decimal places.) (a) Find P(0.00 < z...
Consider using a z test to test H_0: p =
Consider using a z test to test H0: p = 0.1. Determine the p-value in each of the following situations. (Round your answers to four decimal places.) (a) Ha: p 0.1, z- 1.43 (b) Ha : p < 0.1, z =-2.74 (c) Ha: p # 0.1, z =-2.74 (d) Ha: p < 0.1, z-0.25
Consider using a z test to test H0: p = 0.1. Determine the p-value in each...
Consider the following. (Give your answers correct to two decimal places.) (a) Calculate the test statistic z used in testing Ho: p = 0.70, Ha: p > 0.70; with the sample n = 299 and x = 253. (b) Calculate the test statistic z used in testing Ho: p = 0.50, Ha: p < 0.50; with the sample n = 441 and x = 203. (c) Calculate the test statistic z used in testing Ho: p = 0.35, Ha: p...
Find the following probabilities for the standard normal random variable Z: (Give answers to four decimal places.) a) P(Z ≤ 2.1) b) P(Z ≥ 2.1) c) P(Z ≥ -1.65) d) P(-2.13 ≤ Z ≤ -.41) e) P(-1.45≤ Z ≤ 2.15) f) P(Z ≤ -1.43)
Consider a normal population with the following. (Give your answers correct to two decimal places.) μ = 26 and σ = 4.6 (a) Calculate the z-score for an x of 20.9. (b) Calculate the z-score for an x of 20.9 from a sample of size 26. (c) Explain how 20.9 can have such different z-scores. x and x belong to the same distribution x and x belong to different distributions
Consider the following hypothesis test for the mean difference. (Give your answers correct to four decimal places.) (a) Determine the p-value for Ho: μd = 0 and Ha: μd > 0, with n = 22 and t = 1.87. (b) Determine the p-value for Ho: μd = 0 and Ha: μd ≠ 0, with n = 16 and t = -2. (c) Determine the p-value for Ho: μd = 0 and Ha: μd < 0, with n = 32 and...
Consider a normal population with the following. (Give your answers correct to two decimal places.) μ = 24.5 and σ = 4 (a) Calculate the z-score for an x of 21.5. (b) Calculate the z-score for an x of 21.5 from a sample of size 22. (c) Explain how 21.5 can have such different z-scores. x and x belong to the same distribution x and x belong to different distributions You may need to use the appropriate table in Appendix...
Consider the following hypothesis test for the mean difference. (Give your answers correct to four decimal places.) (a) Determine the p-value for Ho: μd = 0 and Ha: μd > 0, with n = 20 and t = 1.98. (b) Determine the p-value for Ho: μd = 0 and Ha: μd ≠ 0, with n = 18 and t = -1.88. (c) Determine the p-value for Ho: μd = 0 and Ha: μd < 0, with n = 30 and...
Assume that z is the test statistic. (Give your answers correct to two decimal places.) (a) Calculate the value of z for Ho: μ = 10, σ = 2.6, n = 37, x = 10.9. (b) Calculate the value of z for Ho: μ = 120, σ = 26, n = 26, x = 125.2. (c) Calculate the value of z for Ho: μ = 18.2, σ = 3.7, n = 144, x = 19.01. (d) Calculate the value of...
Assume that z is the test statistic. (Give your answers correct to two decimal places.) (a) Calculate the value of z for Ho: μ = 51, σ = 3.6, n = 44, x = 49. (b) Calculate the value of z for Ho: μ = 20, σ = 4, n = 71, x = 21.8. (c) Calculate the value of z for Ho: μ = 138.5, σ = 3.6, n = 10, x = 140.51. (d) Calculate the value of...
Consider the following. (Round your answers to two decimal places.) (a) Determine the value of the confidence coefficient z(α/2) for 1 − α = 0.89. (b) Determine the value of the confidence coefficient z(α/2) for 1 − α = 0.94. Two hundred fish caught in Cayuga Lake had a mean length of 14.4 inches. The population standard deviation is 3.5 inches. (Give your answer correct to two decimal places.) (c) Find the 90% confidence interval for the population mean length....