Perform the test of hypotheses indicated, using the data from independent samples given. Use the critical...
Perform the test of hypotheses indicated, using the data from independent samples given. Use the critical value approach. Compute the p-value of the test as well α. Test Ho : μι-μ2 = 3 vs. Ha : μι-μ2メ 3 @ α = 0.05 , ni = 35, z i = 25, si = 1 ,S2 b.Test Ho : μι-ㄣ--25 vs. Ha : μι-μ2 <-25 @ α = 0.10. ni = 85, 2:1 = 188, 81 = 15 n2 = 62,-2-2 15,...
answer 4 and 6 = 2 2 1.6 4. Construct the confidence interval for u-u2 for the level of confiden data from independent samples give a. 99.5% confidence, of confidence and the - 4 bo n i= 40, x 1 = 85.6, 8, = 28 n2 = 20, x 2 = 73.1,82 = 2.1 bivs b. 99.9% confidence, ni = 25, x 1 = 215,81 = 7 n2 = 35, x 2 = 185,82 = 12 and the en. n2...
Summary statistics are given for independent simple random samples from two populations. Use the pooled t-tes conduct the required hypothesis test. 8) x1 = 13, 51 =5, n1 = 10, x2 = 21, 52 = 4, n2 = 14 Perform a left-tailed hypothesis test using a significance level of a = 0.05. A) Test statistic t = -1.526526 B) Test statistic t -4.355 Critical value-1.717 Critical value=-2.074 0.05 <P<0.10 P<0.005 Do not reject Ho Reject Ho C) Test statistic t...
62, two independent samples of n1 = 8 and n2 = 10 were taken. The data is given below. Both populations are (1 point) In a test of two population means - M1 versus u2 - with unknown variances o normally distributed. Sample From Population 1: 15, 19, 20, 20, 22, 18, 17, 14 Sample From Population 2:11, 14, 15, 23, 25, 12, 20, 14, 22, 17 (a) You wish to test the hypothesis that both populations have the same...
Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses, level of significance a, and sample sizes n1 and n2. Assume that the samples are independent, normal, and random Answer parts (a) and (b) Ha H1H2, 0.005, n1 12, n2 10 (a) Find the critical value(s) assuming that the population variances are equal. Construct a 90% confidence interval for -H2 with the Bakery A Bakery B sample statistics for mean calorie content of two bakeries specialty...
Find the critical value to test the claim that μ1 < μ2. Two samples are random, independent, and come from populations that are normal. The sample statistics are given below. Assume that σ 2/1= σ2/2. Use α = 0.05. n1 = 15 n2 = 15 x1 = 25.74 x2 = 28.29 s1 = 2.9 s2 = 2.8
Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. x1= 13, s1= 2.3, n1= 19, x2= 16, s2= 2.4, n2=19 a. What are the correct hypotheses for a left-tailed test? b. Compute the test statistic. c. Determine the P-value. d. The 95% confidence interval is from _____ to _______ ?
Find the critical t-value(s) for a two independent samples t-test given: α = 0.05 n1 = 12 n2 = 11 two-tailed test
Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses, level of significance alphaα,and sample sizes n1and n2. Assume that the samples are independent, normal, and random. Answer parts (a) and (b). Ha: u1 2μ1≠μ2, alphaα=0.20 n1=10, n2=2 (b) Find the critical value(s) assuming that the population variances are not equal.
Find the critical values, t0, to test the claim that μ1 = μ2. Two samples are random, independent, and come from populations that are normal. The sample statistics are given below. Assume that σ 2 1 ≠ σ 2 2 . Use α = 0.05. n1 = 32 n2 = 30 x1 = 16 x2 = 14 s1 = 1.5 s2 = 1.9