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 = 4.3, n = 43, x = 49.2.
(b) Calculate the value of z for Ho: μ = 20, σ = 4.2, n = 79, x = 20.8.
(c) Calculate the value of z for Ho: μ = 138.5, σ = 3.5, n = 12, x = 144.08.
(d) Calculate the value of z for Ho: μ = 815, σ = 42.9, n = 59, x = 800.3.
You may need to use the appropriate table in Appendix B to answer this question.
Assume that z is the test statistic. (Give your answers correct to two decimal places.) (a)...
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...
8.0-9.09 points JKEStat11 8.Ε.094 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 4.3, n-38, x 50.3. (b) Calculate the value of z for Ho: μ = 20, σ = 3.7, n = 78, x = 21.8. (c) Calculate the value of z for Ho: μ 138.5, σ 4.4, n 18, x-: 141.19 (d) Calculate the value of Z for Ho: μ 815, σ...
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 = 3.3, n = 37, x = 11.1. (b) Calculate the value of z for Ho: μ = 120, σ = 22, n = 25, x = 127. (c) Calculate the value of z for Ho: μ = 18.2, σ = 4.3, n = 145, x = 19.05. (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 = 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...
A) How large a sample should be taken if the population mean is to be estimated with 99% confidence to within $82? The population has a standard deviation of $906. (Round your answer up to the next whole number.) B) 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 = 4, n = 39, x = 48.6. (b) Calculate the value of...
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...
Assume that z is the test statistic. (a) H0: μ = 22.5, Ha: μ > 22.5; x = 26.7, σ = 7.4, n = 21 (i) Calculate the test statistic z. (Round your answer to two decimal places.) (ii) Calculate the p-value. (Round your answer to four decimal places.) (b) H0: μ = 200, Ha: μ < 200; x = 192, σ = 35, n = 20 (i) Calculate the test statistic z. (Round your answer to two decimal places.)...
Consider the following. (Give your answers correct to two decimal places.) (a) Calculate the value for the test statistic, χ2, for Ho: σ2 = 18.5, n = 19, s2 = 17. χ2* = (b) Calculate the value for the test statistic, χ2, for Ho: σ2 = 31.3, n = 14, s = 5.6. χ2* = (c) Calculate the value for the test statistic, χ2, for Ho: σ = 42.8, n = 14, s = 38.4. χ2* = (d) Calculate the...
ssume that z is the test statistic. (a) H0: μ = 22.5, Ha: μ > 22.5; x = 24.8, σ = 7.3, n = 37 (i) Calculate the test statistic z. (Round your answer to two decimal places.) (ii) Calculate the p-value. (Round your answer to four decimal places.) (b) H0: μ = 200, Ha: μ < 200; x = 192.1, σ = 34, n = 32 (i) Calculate the test statistic z. (Round your answer to two decimal places.)...
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...