Test the claim that the mean for sample 1 is smaller than the mean for sample 2. The results for the sample are below. sample 1 sample 2 x¯1=13.7x¯2=15.9 s1=4.3 s2=3.5 n1=39 n2=58 Use a significance level of .06 C: (write it out in words such as mean1>mean2, no spaces at all) H0: (write it out in words such as mean1
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Test the claim that the two samples described below come from populations with the same mean. Assume that the samples are independent simple random samples. Use a significance level of 0.03. Sample 1: n = 51, X1 = 15, s1 = ? Sample 2: n = ?, X2 = ?, s2 = ? The test statistic is ? The P-Value is ? The conclusion: There is sufficient evidence to reject the claim that the two populations have the same mean.
Madhur L.
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Test the claim that the two samples described below come from populations with the same mean. Assume that the samples are independent simple random samples. Use a significance level of α = 0.01. Sample 1: n1 = 16, x̄1 = 24.6, s1 = 6 Sample 2: n2 = 3, x̄2 = 28.2, s2 = 6.2 (a) The degrees of freedom is (b) The test statistic is (c) Determine the rejection region for the test of H0: (μ1 − μ2) = 0 and Ha: (μ1 − μ2) ≠ 0 |t| > The final conclusion is: A. There is not sufficient evidence to reject the null hypothesis that (μ1 − μ2) = 0. B. We can reject the null hypothesis that (μ1 − μ2) = 0 and accept that (μ1 − μ2) ≠ 0.
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