Repeat Problem 10.14 (a), assuming that the population variances from developed and emerging countries are not equal. Compare these results with those of Problem 10.14 (a).

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Pooled-Variance t Test for the Difference Between Two Means (assumes equal population variances) Data Hypothesized Difference Level of Significance 0.05 Population 1 Sample Sample Size 15 Sample Mean 21.9 Sample Standard Deviation 25.83062966 Population 2 Sample Sample Size 15 Sample Mean 11.83333333 Sample Standard Deviation 7.74058568 Intermediate Calculations Population 1 Sample Degrees of Freedom 14 Population 2 Sample Degrees of Freedom 14 Total Degrees of Freedom 28 Pooled Variance 363.5690 Standard Error 6.9625 Difference in Sample Means 10.0667 t Test Statistic 1.4458 Two-Tail Test Lower Critical Value -2.0484 Upper Critical Value 2.0484 p-Value 0.1593 Do not reject the null hypothesis