STAT 2040 Study Guide - Summary Statistics, Test Statistic, Null Hypothesis
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Page: 1 of 1 rows: 1 - 10 of 10 - 0. Round your response to at least 2 decimal places. In a certain country tthe probability a randomly selected adult is literate is 0. 90. Consider the following summary statistics, calculated from two independent random samples taken from normally distributed populations. Test the null hypothesis against the alternative hypothesis a) to save you on calculations, i will tell you that the standard error of the difference in sample means (se(x_1 bar - x_2 bar)) is 0. 577062. Calculate the test statistic for the pooled-variance t procedure. 6. 03055 (33%) b) determine the range in which the p-value falls: p-value < 0. 01 (33%) There is sufficient evidence to reject the null hypothesis at both the 5% and. Suppose researchers drew a random sample of 10 newborn babies born at a large hospital. They found a sample mean weight of 3432 grams, and a sample standard deviation of s = 482 grams.
