From the Statistician Review Question: The appropriate t-value when not assuming equal variances has been removed from
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“From the Statistician” Review Question: The appropriate t-value when not assuming equal variances has been removed from the table in Figure 9-7. Calculate what it would be.
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FIGURE 9-7 t-Test for Equality of Mean Birth Weight in Full-Term and Premature Infants. Equal variances assumed Birth weight Equal variances not assumed Levene's Test for Equality of Variances F 0.767 Significance t Independent Samples Test 0.407 8.465 8 df 7.484 Significance Mean (two-tailed) 0.000 t-Test for Equality of Means 0.000 Standard Error Difference Difference 95% Confidence Interval of the Difference Lower Upper 2228.33333 253.23640 1621.30910 2835.35756 2228.33333 251.93804 1640.30927 2816.35740
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Statistics For Nursing A Practical Approach
ISBN: 9781284142013
3rd Edition
Authors: Elizabeth Heavey
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