Consider a hypothesis test (Ho: u = 10 vs H,:u > 10) on mean of a...
Consider a hypothesis test (Hou = 7 vs H : #7) on mean of a normal population with variance known at significance level a = 0.05. Calculate the P-value for each of the following test statistics and draw conclusion on whether to reject the null hypothesis given each test statistic. (a) zo = 2.05 (b) zo = -1.84 (c) zo = 0.4
*Show ALL work, answer is given already* 3) For the hypothesis test Ho: u = 5 against Hi: u < 5 with variance unknown and n = 12, approximate the P-value for each of the following test statistics. to = 2.05 0.95 sps 0.975 to = -1.84 0.025 sps 0.05 to = 0.4 0.6 sps 0.75
For the hypothesis test Ho: μ-5 against Hi : μ < 5 and variance known, calculate the P-value for each of the following test statistics. (a) Zo 2.05 (b) zo-1.84 (czo 0.4 For the hypothesis test Ho: μ-5 against Hi : μ
A hypothesis will be used to test that a population mean equa value for the test statistic Zo for the significance level of 0.005? against the alternative that the population mean is less than 8 with known variance . what is the critical Round your answer to two decimal places (e.g. 98.76)
For the following hypothesis test, where Ho S 10. vs. Hau > 10, we reject Ho at level of significance a and conclude that the true mean is greater than 10, when the true mean is really 8. Based on this information, we can state that we have O made a Type I error. O made a Type Il error. O made a correct decision increased the power of the test.
Hypothesis test results: u : Mean of variable Ho: u = 2.3 Ha:u>2.3 Variable Sample Mean Std. Err. DF Length 2.58937 0.205288 399 T-Stat 1.409581 P-value 0.0797 A data set includes data from 400 random tornadoes. The display from technology available below results from using the tornado lengths (miles) to test the claim that the mean tornado length is greater than 2.3 miles. Use a 0.05 significance level. Identify the null and alternative hypotheses, test statistic, P-value, and state the...
A hypothesis will be used to test that a population mean equals 12 against the alternative that the population mean is less than 12 with known variance o. What is the critical value for the test statistic Zo for the significance level of 0.010? Round your answer to two decimal places (e.g. 98.76). 21-a =
Please explain the result. A hypothesis will be used to test that a population mean equals 13 against the alternative that the population mean is less than 13 with known variance o. What is the critical value for the test statistic Zo for the significance level of 0.030? Round your answer to two decimal places (e.g. 98.76). 21-Q =
Diego is testing a claim about a population mean. The hypotheses are: Ho: u = 137 H: 4 > 137 After taking a simple random sample of 58 subjects, he determines that the sample mean is 140. Diego then does some calculations and writes the following in his notebook: "If Ho were true, the chance that the sample mean would have come out as big (or bigger) than 0.17." What is the name given to the value of 0.17? o...
Identify the null hypothesis, alternative hypothesis, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Test the claim about the population mean u at the level of significance a. Assume the population is normally distributed. Claim:us 45; a = 0.01; 0 = 4.3 Sample statistics: x = 46.8, n = 40 Fail to reject Ho. There is enough evidence at the 1% level of significance to support the claim. Reject Ho. There is enough evidence...