Mann-Whitney U Test Calculator (SPSS) Perform non-parametric comparison between two independent samples Group 1 Name Group 1 Data (comma separated) Group 2 Name Group 2 Data (comma separated) Significance Level (α) 0.05 (5%)0.01 (1%)0.1 (10%) Alternative Hypothesis Two-sided (≠)One-sided (>)One-sided…

Hydrostatic Test Pressure Calculator Calculate the required hydrostatic test pressure for pipelines, pressure vessels, and other systems according to ASME B31.3 and API standards. Enter your system parameters below to determine the minimum test pressure required for safety compliance. System…

Grade Percentage Calculator Calculate your test score percentage and understand your performance Score Obtained Total Possible Score Test Weight (Optional) Regular Test (100%)Midterm (50%)Quiz (30%)Homework (20%)Participation (10%) Grading Scale Standard (A-F)A+/A/A-Pass/Fail Calculate Grade Your Results –% — — Comprehensive Guide:…

Anderson-Darling Test Calculator Perform the Anderson-Darling normality test on your dataset to determine if it follows a normal distribution Enter your data (comma or space separated): Select distribution to test against: NormalLogisticExponentialGumbel Significance level (α): 0.01 (1%) 0.05 (5%) 0.10…

Friedman’s Test Calculator Perform non-parametric repeated measures ANOVA with this interactive calculator Number of Blocks (k): Number of Treatments (n): Data Input Method: Manual EntryCSV Paste Enter your data (one block per row, treatments separated by commas): Significance Level (α):…

Correlational T-Test Calculator Calculate the statistical significance of the correlation between two continuous variables using Pearson’s r and test it against the null hypothesis (r = 0). Sample Size (n) Pearson’s r (Correlation Coefficient) Test Type Two-Tailed TestOne-Tailed Test Significance…

Wattage Test Calculator Calculate the exact wattage requirements for your electrical system with precision Device Type Select device typeHome ApplianceHVAC SystemLighting SystemComputer/ServerIndustrial Equipment Voltage (V) Current (A) Power Factor 1.0 (Purely Resistive)0.95 (High Efficiency)0.9 (Typical)0.85 (Moderate)0.8 (Standard)0.75 (Low Efficiency)0.7 (Poor)…

Calculation Speed Test Measure your mental math performance with this interactive calculator. Track your speed, accuracy, and improvement over time with detailed analytics. Test Duration (minutes) 1 minute2 minutes3 minutes5 minutes10 minutes Operation Type Addition OnlyMixed OperationsMultiplication OnlyDivision Only Difficulty…

Wilcoxon Rank Sum Test Calculator Calculate the non-parametric test for comparing two independent samples Sample 1 Data (comma separated) Sample 2 Data (comma separated) Significance Level (α) 0.01 (1%)0.05 (5%)0.10 (10%) Alternative Hypothesis Two-sided (≠)One-sided (Sample 1 < Sample 2)One-sided…

50-Item Test Grade Calculator Number of Correct Answers Number of Wrong Answers Number of Unanswered Items Grading System Standard (No penalty for wrong answers)With Penalty (Deduct 0.25 for each wrong answer) Calculate Grade Raw Score: 0 Percentage: 0% Letter Grade:…