Canvas →XC i A文 X Use the data in the output tables below to calculate the effect size, r: Group Statistics If you have older children, have you breastfed before? N Mean Std. Deviation Std. Error Mean Yes 18 15.83 3.698 .872 What did you score on the pretest breastfeeding assessment? No 7 14.71 4.855 1.835 Independent Samples Test Levene's Test for Equality of Variances LL t-test for Equality of Means == 95% Confidence Sig. t df Sig. (2- tailed) Mean Difference Difference Std. Error Interval of the Difference Lower Upper What did you score on the pretest Equal variances assumed .883 .357 .623 23 .539 1.119 1.796 -2.596 4.834 breastfeeding assessment? Equal variances .551 8.854 .595 1.119 2.032 -3.488 5.726 not assumed 0.13 O.18 0.02 0.03 MacBook Pro

Canvas →XC i A文 X Use the data in the output tables below to calculate the effect size, r: Group Statistics If you have older children, have you breastfed before? N Mean Std. Deviation Std. Error Mean Yes 18 15.83 3.698 .872 What did you score on the pretest breastfeeding assessment? No 7 14.71 4.855 1.835 Independent Samples Test Levene's Test for Equality of Variances LL t-test for Equality of Means == 95% Confidence Sig. t df Sig. (2- tailed) Mean Difference Difference Std. Error Interval of the Difference Lower Upper What did you score on the pretest Equal variances assumed .883 .357 .623 23 .539 1.119 1.796 -2.596 4.834 breastfeeding assessment? Equal variances .551 8.854 .595 1.119 2.032 -3.488 5.726 not assumed 0.13 O.18 0.02 0.03 MacBook Pro

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 8PPS

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