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Question 3: The population standard deviation is 6. A sample of 60 ample of 60 provided...
A sample of 50 provided a sample mean of 14.34. The population standard deviation is 7.
Consider the following hypothesis test:H0 : μ = 16Ha : μ ≠ 16A sample of 50 provided a sample mean of 14.34. The population standard deviation is 7. a. Compute the value of the test statistic (to 2 decimals).b. What is the p-value (to 4 decimals)? c. Using α = .05, can it be concluded that the population mean is not equal to 1?d. Using α = .05, what are the critical values for the test statistic (to 2 decimals)?e. State the rejection...
Question-1: Consider the following hypothesis test: ?0: ? ≤ 3 ?1: ? > 3 A sample...
Question-1: Consider the following hypothesis test: ?0: ? ≤ 3 ?1: ? > 3 A sample of 40 provided a sample mean of 26.4. The population standard deviation is 6. Compute the value of the test statistic. What is the p-value? At α = .01, what is your conclusion? What is the rejection rule using the critical value? What is your conclusion?
Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 60 provided a sample mean of 19.6. The populati...
Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 60 provided a sample mean of 19.6. The population standard deviation is 1.8. a. Compute the value of the test statistic (to 2 decimals). If your answer is negative, use minus "-" sign. b. What is the p-value (to 3 decimals)? c. Using = .05, can it be concluded that the population mean is less than 20? d. Using = .05, what is the critical...
Name and Signature: 1. Consider the following hypothesis test A sample of 50 provided a sample...
Name and Signature: 1. Consider the following hypothesis test A sample of 50 provided a sample mean of 15.15. The population standard deviation is 3. a. Compute the value of the test statistic. b. What is the p value? C. At α : 0.05, what is the rejection rule using the critical value? what is your conclusion? 2. Consider the following hypothesis test: A sample of 60 is used and the population standard deviation is 8. Use a 0.05. a....
Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 60 provided a...
Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 60 provided a sample mean of 19.5. The population standard deviation is 2. a. Compute the value of the test statistic (to 2 decimals). If your answer is negative, use minus "-" sign. b. What is the p-value (to 3 decimals)? c. Using = .05, can it be concluded that the population mean is less than 20? SelectYesNoItem 3 d. Using = .05, what is the critical value for...
A sample of 16 items provides a sample standard deviation of 9.5. Test the following hypotheses...
A sample of 16 items provides a sample standard deviation of 9.5. Test the following hypotheses using a - .o5. Ho : σ 2 < 50 Ha : σ 2 > 50 a. Calculate the value of the test statistic (to 2 decimals). 2.85 The p-value is between .025 and .05 What is your conclusion? Conclude that the population variance is greater than 50 b. Repeat the hypothesis test using the critical value approach. Round critical value to 3 decimal...
A sample of 60 observations is selected from one population with a population standard deviation of...
A sample of 60 observations is selected from one population with a population standard deviation of 0.68. The sample mean is 268. A sample of 49 observations is selected from a second population with a population standard deviation of 0.69. The sample mean is 2.62. Conduct the following test of hypothesis using the 0.1 significance level: HO H-120 th: H1-H2 > 0 a. Is this a one-tailed or a two-tailed test? This is a one -tailed test. b. State the...
3-7 Consider the following hypothesis test: Ho: u=15 Ha: u15 A sample of 40 provided a...
3-7
Consider the following hypothesis test: Ho: u=15 Ha: u15 A sample of 40 provided a sample mean of 14.16. The population standard deviation is 6. Enter negative value as negative number. a. Compute the value of the test statistic (to 2 decimals) b. What is the p-value (to 4 decimals)? Use the value of the test statistic rounded to 2 decimal places in your calculations. c. Using a 0.05, can it be concluded that the population mean is not...
6. Testing a population mean, Methods (Exercise 9.23 eBook Consider the following hypothesis test: Ho: ?...
6. Testing a population mean, Methods (Exercise 9.23 eBook Consider the following hypothesis test: Ho: ? 12 Ha: ? > 12 A sample of 25 provided a sample mean T -14 and a sample standard deviation s 4.32. a. Compute the value of the test statistic (to 2 decimals). b. Use the t distribution table (Table 2 in Appendix B) to compute a range for the p-value. The p-value is Select Answer the next three questions using the critical value...
A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test...
A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 1% significance level. x = 27, n=31, o = 9, Ho: u = 33, Ha: u <33 The test statistic is z= - 3.71 . Round to two decimal places as needed.) dentify the critical value(s). Select the correct choice below and fill in the answer box within your choice. Round to two decimal places as...
Name and Signature: 1. Consider the following hypothesis test A sample of 50 provided a sample mean of 15.15. The population standard deviation is 3. a. Compute the value of the test statistic. b. What is the p value? C. At α : 0.05, what is the rejection rule using the critical value? what is your conclusion? 2. Consider the following hypothesis test: A sample of 60 is used and the population standard deviation is 8. Use a 0.05. a....
A sample of 16 items provides a sample standard deviation of 9.5. Test the following hypotheses using a - .o5. Ho : σ 2 < 50 Ha : σ 2 > 50 a. Calculate the value of the test statistic (to 2 decimals). 2.85 The p-value is between .025 and .05 What is your conclusion? Conclude that the population variance is greater than 50 b. Repeat the hypothesis test using the critical value approach. Round critical value to 3 decimal...
A sample of 60 observations is selected from one population with a population standard deviation of 0.68. The sample mean is 268. A sample of 49 observations is selected from a second population with a population standard deviation of 0.69. The sample mean is 2.62. Conduct the following test of hypothesis using the 0.1 significance level: HO H-120 th: H1-H2 > 0 a. Is this a one-tailed or a two-tailed test? This is a one -tailed test. b. State the...
3-7
Consider the following hypothesis test: Ho: u=15 Ha: u15 A sample of 40 provided a sample mean of 14.16. The population standard deviation is 6. Enter negative value as negative number. a. Compute the value of the test statistic (to 2 decimals) b. What is the p-value (to 4 decimals)? Use the value of the test statistic rounded to 2 decimal places in your calculations. c. Using a 0.05, can it be concluded that the population mean is not...
6. Testing a population mean, Methods (Exercise 9.23 eBook Consider the following hypothesis test: Ho: ? 12 Ha: ? > 12 A sample of 25 provided a sample mean T -14 and a sample standard deviation s 4.32. a. Compute the value of the test statistic (to 2 decimals). b. Use the t distribution table (Table 2 in Appendix B) to compute a range for the p-value. The p-value is Select Answer the next three questions using the critical value...
A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the required hypothesis test at the 1% significance level. x = 27, n=31, o = 9, Ho: u = 33, Ha: u <33 The test statistic is z= - 3.71 . Round to two decimal places as needed.) dentify the critical value(s). Select the correct choice below and fill in the answer box within your choice. Round to two decimal places as...
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