I plugged in all the info but got the wrong answers
Posted: Wed May 11, 2022 3:05 pm
I plugged in all the info but got the wrong answers
fferen die anul anu and we ons are normally distributed. the poi Claim: 14 = H2; a=0.10. Assume o} = o ssum Sample statistics: * = 33.1, s, = 3.5, n = 11 and X2 = 35.4. Sy = 2.2, n2 = 16 1.54 5.4,52 ORG What type of test should be carried out for this problem? Since the population standard deviations are unknown, use a two-sample t-test to test the difference between two population means using independent samples with equal population variances. Carry out the test. Identify the null and alternative hypotheses. Choose the correct answer below. A. HOH SH2 Haitg>h ов. Но: 4 <a Hai 242 Lost statis Print Continue this View an example Get more help Clear all
Test the claim about the difference between two population means H, and Hy at the level of significance a. Assume the samples en are random and independent, and the populations are normally distributed. Claim: 14 = 12; a = 0.10. Assume of = Ha um Sample statistics: X2 = 33.1, 54 = 3.5, n = 11 and S7 x2 = 35.4, s2 = 2.2, n2 = 16 52 1 1 + Next calculate the standardized test statistic, t, for equal population variances. While technology or the formula below can be used to calculate t, for this problem, use technology. In the formula below, x, and X, are the sample means, Hy and Hy are the (m, -1) s + (n2-1)s population means, $ is the standard error for the sampling distribution, = П. П. the pooled estimate of the standard deviation, s, and sy are the sample standard deviations, and n, and n, are the sample sizes. (xy - x2) - (+4+H2) nq +0₂ - 2 statis te S
Test the claim about the difference between two population means H, and H2 at the level of significance a. Assume the samples en are random and independent, and the populations are normally distributed. Claim; 14, = H2; a=0.10. Assume of = o'z um Sample statistics: *4 = 33.1, 8, = 3.5, n = 11 and S4 Xy = 35.4. Sy = 2.2, n2 = 16 = GE (x -x2) - (141-H2) ta Obtain the value of the test statistic from technology. t = -2.10 (Round to two decimal places as needed.) t statis. Next find the P-value. Use technology to obtain the P-value. For equal population variances, the degrees of freedom are
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Test the claim about the difference between two population means H, and Hy at the level of significance a. Assume the samples en are random and independent, and the populations are normally distributed. Claim: 14 = 12; a = 0.10. Assume of = Ha um Sample statistics: X2 = 33.1, 54 = 3.5, n = 11 and S7 x2 = 35.4, s2 = 2.2, n2 = 16 52 1 1 + Next calculate the standardized test statistic, t, for equal population variances. While technology or the formula below can be used to calculate t, for this problem, use technology. In the formula below, x, and X, are the sample means, Hy and Hy are the (m, -1) s + (n2-1)s population means, $ is the standard error for the sampling distribution, = П. П. the pooled estimate of the standard deviation, s, and sy are the sample standard deviations, and n, and n, are the sample sizes. (xy - x2) - (+4+H2) nq +0₂ - 2 statis te S
Test the claim about the difference between two population means H, and H2 at the level of significance a. Assume the samples en are random and independent, and the populations are normally distributed. Claim; 14, = H2; a=0.10. Assume of = o'z um Sample statistics: *4 = 33.1, 8, = 3.5, n = 11 and S4 Xy = 35.4. Sy = 2.2, n2 = 16 = GE (x -x2) - (141-H2) ta Obtain the value of the test statistic from technology. t = -2.10 (Round to two decimal places as needed.) t statis. Next find the P-value. Use technology to obtain the P-value. For equal population variances, the degrees of freedom are