A significance test was performed to test H0: \mu = 2 versus Ha: \mu \ne 2. The test statistic is z = 1.40. What is the p-value for this test? We are performing a two sided t-test : μo = 10, to = 2, n...
What is the appropriate test statistic for constructing confidence intervals for the population mean of a normal distribution when the population variance is unknown? A. The t -statistic at α/2 with n degrees of freedom. B. The z -statistic with n – 1 degrees of freedom. C. The z -st...
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...
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...
at the 0.05 level of significance is there evidence that more than 20% of the customers would upgrade to a new cellphone at a reduced cost? the answer is: h0 pi < or equal to 0.20 h1 pi > = 0. 2). What is the test statistic here? Zstat = ?
null hypothesis in this case is ,H0:and an appropriate alternate hypothesis is to be used. The F value is calculated asF =.Also the degrees of freedom are n-1 and m-1. This is then compared to the table value of F Statistic for the required confidence interval and degrees of freedom....
Defusco, CFA, Dennis W. McLeavey, CFA, Jerald E. Pinto, CFA, and David E. Runkle, CFAA test statistic is defined as the difference between the sample statistic and the value of the population parameter under H0 divided by the standard error of the sample statistic....
Which test statistic you use depends on what kind of data you have. Some examples of test stats: t score, and chi-square.A statistic can be more than one type. For example, the sample standard deviation can be used as a descriptive statistic to describe the standard deviation of a ...
What a Chi-Square (χ2) Statistic Can Tell You There are two main kinds of chi-square tests that will provide different information: The test of independence, which asks a question of relationship, such as, “Is there a relationship between student gender and course choice?” ...
Now, if we can't interpret our F-test, then how can we know if our mean salaries differ? Two good alternatives are: running an ANOVA with the Welch statistic or a Kruskal-Wallis test. Let's start off with the Welch statistic. SPSS ANOVA Dialogs II For inspecting the Welch statistic, ...