Medical statistics

  1. Medical statistics

Tests of significance, part 2

The t-test is any statistical hypothesis test in which the test statistic follows a Student’s t-distribution under the null hypothesis. A t-test is the most commonly applied when the test statistic would follow a normal distribution if the value of a scaling term in the test statistic were known. When the scaling term is unknown and is replaced by an estimate based on the data, the test statistics (under certain conditions) […]
  1. Medical statistics

Tests of significance, part 1

Tests of significance: Statistical significance means there is a good chance that a relationship exists between two variables. Null hypothesis: States that there is no relationship between any two variables, so statistical effort will be directed to prove that Null hypothesis is likely or not likely. Statistical significance means that null hypothesis is unlikely. Statistical […]

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Ergonomics concept made easy

Nobody can work in a perfect position all the time. The best position For Tendons & Ligaments are those in which the muscles have the most strength. Body muscles will have the most strength if:                                          Shoulders are relaxed.                                                                                        Elbows are near the side and bent at about 90 angle to reach the work. without any […]
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Worlwide

Ergonomics concept made easy

Nobody can work in a perfect position all the time. The best position For Tendons & Ligaments are those in which the muscles have the most strength. Body muscles will have the most strength if:                                          Shoulders are relaxed.                                                                                        Elbows are near the side and bent at about 90 angle to reach the work. without any […]
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