What is the appropriate test statistic for constructing confidence intervals for the population mean of a nonnormal distribution when the population variance is unknown and the sample size is large (n ≥ 30)? A. The z -statistic at α with n degrees of freedom. B. The t -statistic at α...
What is the appropriate test statistic for constructing confidence intervals for the population mean of a nonnormal distribution when the population variance is unknown and the sample size is large (n ≥ 30)?A. The z-statistic at α with n degrees of freedom.B. The t-statistic at α with...
In an one-tail hypothesis test where you reject H0 only in the upper tail,what is the critical value of the t-test statistic with 10 degrees of freedom at the 0.01 level of significance? 答案 意思是如果在做单侧T检验时在上尾区拒接零假设,那么按照拒绝标准为0.01,以及10个自由度的标准,你计算...
what is the test statisticThe claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.35, and the sample statistics include nequals=1621 subjects with 551 saying that they smoked a cigarette in the past week....
4What is the One-sample Student’s t-test? 5Advantages of performing the T-test 6Steps to perform a Student t test 7Example of T-test 8What is the difference between the t-test and ANOVA? 9Conclusion What is a T-test? The t-test is a statistical test that helps you compare the ...
In a hypothesis test, if the test statistic is in the rejection region, what does it mean? A. The null hypothesis is accepted. B. The alternative hypothesis is accepted. C. The test is inconclusive. D. A new sample needs to be taken. ...
What is the test statistic for the given information above? Hypothesis Test The hypothesis testing for the mean is a parametric test where the value of the population mean is used as a population parameter. This hypothesis test is conducted by t distribution or z distribution it depends on...
What is the most appropriate test statistic for constructing confidence intervals for the population mean when the population is normally distributed, but the variance is unknownA.The z-statistic at α with n degrees of .B.The t-statistic at α/2 with n
What is a test statistic?Question:What is a test statistic?Test Statistics:In psychology and other fields of scientific inquiry in which statistical analyses are conducted, one type of information is called a test statistic. These include the t-statistic.Answer...
The t-test is a test used for hypothesis testing in statistics and uses the t-statistic, thet-distributionvalues, and the degrees of freedom to determine statistical significance. Key Takeaways A t-test is an inferential statistic used to determine ...