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Table 1 Independent sample test

From: Study on measurement method for apple root morphological parameters based on Labview

 Levin testT-test for mean equality
FSignificancetDegrees of freedomSignificance (double tail)Average deviationStandard error difference99% confidence interval of the difference
Lower limitUpper limit
Surface area0.0200.8890.07358.0000.9422.77938.061− 98.589104.146
  0.07357.9920.9422.77938.061− 98.590104.147
Diameter0.0030.9550.01358.0000.9900.0010.080− 0.2110.213
  0.01358.0000.9900.0010.080− 0.2110.213
Length0.0150.904− 0.02358.0000.982− 1.81378.634− 211.237207.610
  − 0.02357.9810.982− 1.81378.634− 211.240207.613
Volume0.070.9320.2657.0000.9910.0301.1661.1663.136
  0.2656.8500.9910.0301.1661.1663.137