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Critical value for left-tailed t-test:We are excited to announce that you can now use Math Solver in Microsoft Edge (version 91 or higher) to get help with a wide range of mathematical concepts–from elementary arithmetic and quadratic equations to calculus and statistics.. Math Solver in Microsoft Edge lets you to take picture of a math problem – be it handwritten or printed …1. Define the problem you want to solve. Your problem needs to be condensed into two independent events. 2. Find the probability of each event. Now, when you know how to estimate the likelihood of a single event, you only need to perform the task and obtain all of the necessary values. 3.It is obtained by dividing the sum of data by the number of observations. The formula is: Example: Find the mean of the following set of integers. 8, 11, –6, 22, –3. Solution: Example: The set of scores 12, 5, 7, -8, x, 10 has a mean of 5. Find the value of x.Recall, that in the critical values approach to hypothesis testing, you need to set a significance level, α, before computing the critical values, which in turn give rise to critical regions (a.k.a. rejection regions). Formulas for critical values employ the quantile function of t-distribution, i.e., the inverse of the cdf:. Critical value for left-tailed t-test:Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more. Interquartile Range Calculator. Mid Range Calculator. Standard Deviation Calculator. Median Calculator. Mean Calculator. Probability Calculator - Independent Events. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. The step-by-step z-score calculator calculates a z-score based on the z-score formula. 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