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9-81 Consider the test of Ho: σ2-7 versus Hi: σ4 7. Approximate the P-value for each of the following test statistics (a) xã- 24.8 and n = 18 (b) 12.8 and n = 10 (c%-6.4 and n-16 9-81 Consider t...
Question 4 (0.5 points) Consider the following hypotheses: Ho: mean= 5 Hi: mean< 5 A test is performed with a...
Question 4 (0.5 points) Consider the following hypotheses: Ho: mean= 5 Hi: mean< 5 A test is performed with a sample of size 25. The sample mean was 4.79 and the population standard deviation is 1.2. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer Question 5 (0.5 points) Consider the following hypotheses:...
To test Ho: u = 20 versus Hy: u<20, a simple random sample of size n= 16 is obtained from a population that is known...
To test Ho: u = 20 versus Hy: u<20, a simple random sample of size n= 16 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 18.1 and s = 4.1, compute the test statistic. t (Round to two decimal places as needed.) (b) Draw a t-distribution with the area that represents the P-value shaded. Which of the following graphs...
5 CH 9,IU) 1 Saveu Help Save & Exit Submit Calculate the test statistic and p-value...
5 CH 9,IU) 1 Saveu Help Save & Exit Submit Calculate the test statistic and p-value for each sample. Use Appendix C-2 to calculate the p-value. (Negative values should be indicated by a minus sign. Round your test statistic to 2 decimal places and p-value to 4 decimal places.) Test Statistic p-value (a) HO: 13.60 versus H1: >.60, a = .05, x = 56, n = 80 (b) H0: = .30 versus 11: 17.30, a = .05, x = 18,...
5. (worth 16 points) Consider a test of H : μ-65 versus Ha μ > 65. The test uses σ-10, α-01 size of n 64. and a samp...
5. (worth 16 points) Consider a test of H : μ-65 versus Ha μ > 65. The test uses σ-10, α-01 size of n 64. and a sample a. Describe the sampling distribution of Fassuming Ho is true. Mean (t)- Standard deviation (oz)- Shape: Sketch the sampling distribution of x assuming Ho is true is used as the test stat istic. Locate the rejection region on your graph from b. Specify the rejection region when x part a. C. Describe...
b) also determine P Value Homework: Final review-test Score: 0 of 5 pts 9.3.14-T 10 of...
b) also determine P Value
Homework: Final review-test Score: 0 of 5 pts 9.3.14-T 10 of 16 (9 complete)> Consider the following hypotheses and sample data, and then complete parts a and b below using a0.01. Ho: ? 18 18 20 14 20 20 21 15 a) What conclusion should be drawn? Determine the critical value(s). The critical value(s) is/are) 23 19 17 D (Round to three decimal places as needed. Use a comma to separate answers as needed.)
RReject or not reject each? Consider the following hypotheses: | Ho: u = 1,600 HA: u...
RReject or not reject each?
Consider the following hypotheses: | Ho: u = 1,600 HA: u 7 1,600 The population is normally distributed with a population standard deviation of 600. Compute the value of the test statistic and the resulting p-value for each of the following sample results. For each sample, determine if you can "reject/do not reject" the null hypothesis at the 10% significance level. (You may find it useful to reference the appropriate table: z table or t...
To test Ho: -20 versus H20, a simple random sample of size 18 is obtained from...
To test Ho: -20 versus H20, a simple random sample of size 18 is obtained from a population that is known to be normally distributed Answer parts ( ad). Click here to view the t-Distribution Area in Right Tol (a) If x= 18.1 and 4, compute the test siistic -Round to two decimal places as needed.) (b) Draw a distribution with the area that represents the P-val shaded. Which of the following graphs shows the correct shaded region? B a...
Give as much information as you can about the P-value of a t test in each...
Give as much information as you can about the P-value of a t test in each of the following situations. (Round your answers to three decimal places.) (a) Upper-tailed test, df = 9, t = 2.0 P-value < 0.005 0.005 < P-value < 0.01 0.01 < P-value < 0.025 0.025 < P-value < 0.05 P-value > 0.05 (b) Upper-tailed test, n = 13, t = 3.2 P-value < 0.005 0.005 < P-value < 0.01 0.01 < P-value < 0.025 0.025...
CENGAGE MINDTAP Search this course napter 9 Assignment ох eBook Consider the following hypothesis test: HO:...
CENGAGE MINDTAP Search this course napter 9 Assignment ох eBook Consider the following hypothesis test: HO: 50 OH > 50 A sample of 50 is used and the population standard deviation is 8. Use the critical value approach to state your conclusion for each of the following sample results. Use a = .05. a. With I-52.5, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50? b....
Consider the following point estimators, W, X, Y, and Z of μ: W = (x1 +...
Consider the following point estimators, W, X, Y, and Z of μ: W = (x1 + x2)/2; X = (2x1 + x2)/3; Y = (x1 + 3x2)/4; and Z = (2x1 + 3x2)/5. Assuming that x1 and x2 have both been drawn independently from a population with mean μ and variance σ2 then which of the following is true...Which of the following point estimators is the most efficient? A. Z B. W C. X D. Y An estimator is unbiased...
Question 4 (0.5 points) Consider the following hypotheses: Ho: mean= 5 Hi: mean< 5 A test is performed with a sample of size 25. The sample mean was 4.79 and the population standard deviation is 1.2. Assume that the population is approximately normal. Use the TI-84 PLUS calculator to compute the P-value. Round your answer to four decimal places (for example: 0.0138). Write only a number as your answer. Your Answer: Answer Question 5 (0.5 points) Consider the following hypotheses:...
To test Ho: u = 20 versus Hy: u<20, a simple random sample of size n= 16 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 18.1 and s = 4.1, compute the test statistic. t (Round to two decimal places as needed.) (b) Draw a t-distribution with the area that represents the P-value shaded. Which of the following graphs...
5 CH 9,IU) 1 Saveu Help Save & Exit Submit Calculate the test statistic and p-value for each sample. Use Appendix C-2 to calculate the p-value. (Negative values should be indicated by a minus sign. Round your test statistic to 2 decimal places and p-value to 4 decimal places.) Test Statistic p-value (a) HO: 13.60 versus H1: >.60, a = .05, x = 56, n = 80 (b) H0: = .30 versus 11: 17.30, a = .05, x = 18,...
5. (worth 16 points) Consider a test of H : μ-65 versus Ha μ > 65. The test uses σ-10, α-01 size of n 64. and a sample a. Describe the sampling distribution of Fassuming Ho is true. Mean (t)- Standard deviation (oz)- Shape: Sketch the sampling distribution of x assuming Ho is true is used as the test stat istic. Locate the rejection region on your graph from b. Specify the rejection region when x part a. C. Describe...
b) also determine P Value
Homework: Final review-test Score: 0 of 5 pts 9.3.14-T 10 of 16 (9 complete)> Consider the following hypotheses and sample data, and then complete parts a and b below using a0.01. Ho: ? 18 18 20 14 20 20 21 15 a) What conclusion should be drawn? Determine the critical value(s). The critical value(s) is/are) 23 19 17 D (Round to three decimal places as needed. Use a comma to separate answers as needed.)
RReject or not reject each?
Consider the following hypotheses: | Ho: u = 1,600 HA: u 7 1,600 The population is normally distributed with a population standard deviation of 600. Compute the value of the test statistic and the resulting p-value for each of the following sample results. For each sample, determine if you can "reject/do not reject" the null hypothesis at the 10% significance level. (You may find it useful to reference the appropriate table: z table or t...
To test Ho: -20 versus H20, a simple random sample of size 18 is obtained from a population that is known to be normally distributed Answer parts ( ad). Click here to view the t-Distribution Area in Right Tol (a) If x= 18.1 and 4, compute the test siistic -Round to two decimal places as needed.) (b) Draw a distribution with the area that represents the P-val shaded. Which of the following graphs shows the correct shaded region? B a...
CENGAGE MINDTAP Search this course napter 9 Assignment ох eBook Consider the following hypothesis test: HO: 50 OH > 50 A sample of 50 is used and the population standard deviation is 8. Use the critical value approach to state your conclusion for each of the following sample results. Use a = .05. a. With I-52.5, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50? b....
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