Using the calculator above, you find that a sample mean of $61.02 would results in a t-score of 1.41 under the null distribution, which translates to a p-value of 8.30%. Interpret Your Results - Since your p-value of 8.30% is greater than the significance level of 5%, you do not have sufficient evidence to reject the null hypothesis.

To use this calculator, a user selects the null hypothesis mean (the mean which is claimed), the sample mean, the standard deviation, the sample size, and the significance level and clicks the 'Calculate' button.

Confidence Interval Calculator Mean, Median, Mode Calculator Skewness Calculator Kurtosis Calculator Variance Calculator Standard Deviation Calculator Coefficient of Variation Calculator Linear Regression Calculator P-Value Calculator Hypothesis Test Calculator Difference in Means Calculator

Using the calculator above, you find that a difference in sample means of 2.2 hours [2 = 10.4 – 8.2] would results in a t-score of 2.49 under the null distribution, which translates to a p-value of 0.72%. Interpret Your Results - Since your p-value of 0.72% is less than the significance level of 1%, you have sufficient evidence to reject the null hypothesis.

June 23, 2025 - Our hypothesis test calculator conducts the tests for the selection of raw data, z-value, and mean, standard deviation, & sample size. This hypothesis calculator provides detailed step-by-step calculations that help to understand the process of rejecting or failing to reject the null hypothesis.

June 2, 2025 - This procedure calculates the difference of an observed mean with a hypothesized value. A significance value (P-value) and 95% Confidence Interval (CI) of the observed mean is reported. The P-value is the probability of obtaining the observed mean in the sample if the null hypothesis value ...

Our calculators will guide you through each step, ensuring you understand the process and obtain accurate results. The null hypothesis, denoted as H0, is the default assumption in hypothesis testing. It posits that there is no significant effect or difference between groups or conditions. Essentially, it represents the status quo or the idea that any observed differences are due to random chance. ... In a manufacturing process: H0: "The mean ...

A T-test calculator that comapares the mean of a single sample to a population mean.

December 24, 2023 - Then fill in the standard deviation, the sample mean, \(\bar{x}\), the sample size, \(n\), the hypothesized population mean \(\mu_0\), and indicate if the test is left tailed, <, right tailed, >, or two tailed, \(\neq\). Then hit "Calculate" and the test statistic and p-Value will be calculated for you.

Hypothesis testing for the mean Calculator: Free Hypothesis testing for the mean Calculator - Performs hypothesis testing on the mean both one-tailed and two-tailed and derives a rejection region and conclusion

Hypothesis testing calculator is an online statistical tool that helps to perform hypothesis tests to reject or accept the null hypothesis “H0” by finding test statistics, p-value, & critical value for given data. It performs hypothesis analysis for a defined H0 & significance level by using a related formula for two selections of data, i.e., “raw data” and “mean, SD, & sample size”.

December 24, 2023 - Type in the values from the data set separated by commas, for example, 2,4,5,8,11,2. Then type in the population standard deviation \(\sigma\) if it is known or leave it blank if it is not known. Then choose a left, right or two tailed test, and the hypothesized mean. Finally hit Calculate and the sample mean, the test statistic and the p-value will be shown.

Often, this designated value is a mean previously established in a population, a standard value of interest, or a mean concluded from other studies. Like all hypothesis testing, the one sample t test determines if there is enough evidence reject the null hypothesis (H0) in favor of an alternative ...

September 30, 2025 - Here, we perform a Z-test for population mean μ. Null hypothesis H₀: μ = μ₀.

This online hypothesis testing calculator for population mean helps you to perform the two-tailed and one-tailed statistical hypothesis testing. If you are performing one-tailed test for the sample mean of 20, population mean of 15, the size of the population of 5, SD of 25 and the significance level of -10, then you will get the below values as result. ... P-value > -10 ( Significance level). Hence, H0 is not rejected. H0 is Null Hypothesis.

... A t-test is used when you're looking at a numerical variable - for example, height - and then comparing the averages of two separate populations or groups (e.g., males and females). ... H0: u1 - u2 = 0, where u1 is the mean of first population and u2 the mean of the second.

October 3, 2025 - If you don't know them, provide some data about your sample(s): sample size, mean, and standard deviation, and our t-test calculator will compute the T-score and degrees of freedom for you. Once all the parameters are present, the p-value, or critical region, will immediately appear underneath the t-test calculator, along with an interpretation! The null hypothesis is that the population mean is equal to some value

Enter a value for the null hypothesis. This value should indicate the absence of an effect in your data. Indicate whether your alternative hypothesis involves one-tail or two-tails. If it is a one-tailed test, then you need to indicate whether it is a positive (right tail) test or a negative ...

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