Sample Mean, x: Standard deviation, σ: Sample Size, n: Test Statistic for One Population Mean: The Test Statistic for One Population Mean Calculator is a calculator that is used when the variable is numerica
Population Mean: Sample: Mean: Standard Deviation: Sample Size: Results: Two-tailed P: Left-tailed P: Right-tailed P: Test Statistic (t): Degrees of Freedom (df): Learn how we calculated this below scroll down Add this calculator to your site On this page: Calculator...
What can you do with this z-test statistic calculator for hypothesis testing? The formula for a z-statistic is \[z = \frac{\bar X - \mu_0}{\sigma/\sqrt{n}}\] The null hypothesis is rejected when the z-statistic lies on the rejection region, which is determined by the significa...
calculates the F-Test statistic (Fisher Value) for the given two sets of data $X$ and $Y$. It's an online statistics and probability tool requires two sets of real numbers or valuables.It is necessary to follow the next steps:
If you are also interested in F-test, check our F-statistic calculator. What is a Z-test? A one sample Z-test is one of the most popular location tests. The null hypothesis is that the population mean value is equal to a given number, μ0μ0: H0: μ=μ0.H0: μ=μ0. We...
Use a one-tailed t-test if you want to test whether this mean (or difference in means) is greater/less than the pre-set value. Compute your T-score value: Formulas for the test statistic in t-tests include the sample size, as well as its mean and standard deviation. The exact formul...
The null hypothesis is rejected when the z-statistic lies on the rejection region, which is determined by the significance level (α\alphaα) and the type of tail (two-tailed, left-tailed or right-tailed). This one proportion z test calculator will allow you to compute the critical values...
3. Chi-Square Statistic (χ2) The Chi-Square Statistic measures the overall difference between the observed and expected frequencies. A higher χ2 value suggests a greater association between the variables. 4. Degrees of Freedom (df) Degrees of freedom are calculated as: df=(r−1)×(c...
The calculator not only calculates the p-value (p = 0.1331, a little different from the previous calculation – in it we used the sample mean rounded to one decimal place instead of the data) but it also calculates the test statistic (z-score) for the sample mean, the sample mean,...
The Kruskal-Wallis H statistic is calculated using the following formula: H=12N(N+1)∑i=1kni(Ri−R¯)2 i i R¯ Interpreting the Results A largeHvalue suggests a difference among the groups. The p-value indicates the probability of observing the data if the null hypothesis (no diffe...