Conducting the same test,except assuming equal variances,resulted in not rejecting the null hypothesis,with a tsTAT of 1.73 and critical values t2.02.Compare these results with the results fro the test assuming unequal variances.Choose the correct answer below. OA.The test statistics are equal and the absolute values of the critical values are larger for the separate-variance test,and the conclusion is the same. B.The test statistics are equal and the absolute values of the critical values are larger for the pooled-variance test,and the conclusion is the same O C.The test statistics are equal and the absolute values of the critical values are equal,and the conclusion is the same. OD.The test statistics are unequal and the absolute values of the critical values are equal,and the conclusion is the same.

Which one of the following statements are true about a 2-Sample t-test? It is used to compare differences between two group medians The variances of the two samples are statistically different. The samples to be compared must include the same number of observations Both samples must be from normally distributed processes

In a two-sample t-test, there are two approaches: considering the equal variance and considering the unequal variance. What test is used to check if the variance of the two populations is equal or not?a.F testb.t testc.Z testd.Chi-square test

Only one of these statements is wrong. Which is it?Question 14Answera.A one-sample t-test assumes homogeneity of varianceb. A two-sample t-test assumes homogeneity of variancec.A one-sample t-test assumes normalityd.A paired t-test assumes normality

Which of the following tests should be used to evaluate the difference between the means of two normally distributed populations?An approximate t-test if the population variances are unknown and assumed unequal and the samples are assumed to be independent.An approximate t-test that involves the calculation of a pooled estimator of the population variances which are assumed unequal.A paired comparison test if the two samples are independent and the population variances are unknown

Question. How to perform Hypothesis test (Confidence Interval) for testing of equality of two variances?  Question. What test statistic is used? What probability distribution it follows?Question. Ask ChatGPT to give examples.