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QUESTION 5 Summary statistics are given for independent simple random samples from two populations. Use the...
Summary statistics are given for independent simple random samples from two populations. Use the pooled t-tes...
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...
summary statistics are given for independent simple random samples from two populations. Use the nonpooled t-test...
summary statistics are given for independent simple random samples from two populations. Use the nonpooled t-test to conduct the required hypothesis test. 1 = 72.8, s 1 = 10.9, n 1 = 16, 2 = 69.9, s 2 = 8.2, n 2 = 12 Perform a right-tailed hypothesis test using a significance level of α = 0.05. Test statistic: t = 2.635 Reject H0 Test statistic: t = 2.635 Reject H0 Test statistic: t = 0.803 Do not reject H0 Test...
section 10.3 Provided below are summary statistics for independent simple random samples from two populations. Use...
section 10.3
Provided below are summary statistics for independent simple random samples from two populations. Use the nonpooled t-test and the nonpooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval X = 10,8, +2, ny = 20, X2 = 11,62 = 5, n2 = 20 a. Two-tailed test, 0.01 b. 99% confidence interval a. What are the hypotheses for the t-test? O A. Ho: H=12 Haith Oc. Ho: * HOW 2 B. HeH=2 HHH2...
section 10.3 Provided below are summary statistics for independent simple random samples from two populations. Use...
section 10.3
Provided below are summary statistics for independent simple random samples from two populations. Use the nonpooled t-test and the nonpooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. *4 = 10,5 - 2, 0, -20, 72 - 11,5 - 5, n2 - 20 a. Two-tailed test, a = 0.01 b. 99% confidence interval a. What are the hypotheses for the t-test? O A HOHH2 H₂H12 Oc. Ho: H = 12 Hai H1...
Provided below are summary statistics for independent simple random samples from two populations. Use the pooled...
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 _______ ?
Provided below are summary statistics for independent simple random samples from two populations. Use the pooled...
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=22, s1=44, n1=20, x2=24, s2=55, n2=16 a. What are the correct hypotheses for a left-tailed test? b. Compute the test statistic. c. Determine the P-value. d. The 90% confidence interval is from _____ to _____ ?
Provided below are summary statistics for independent simple random samples from two populations. Use the pooled...
Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-nterval procedure to conduct the required hypothesis test and obtain the specified confidence interval. x1 -21, s16.n11,x2-20, s2 5, n2 14 a. Right-tailed test, α-005 b, 90% confidence interval Compute the test statistic. Round to three decimal places as needed.) Determine the critical value. Round to three decimal places as neoded.) What is the conclusion of the hypothesis test? Since...
Provided below are summary statistics for independent simple random samples from two populations. Use the pooled...
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. x overbar 1 = 11, s 1 = 2.4, n 1=10, x overbar 2= 14, s 2= 2.2, n 2= 10 a. Two-tailed test, alpha =0.05 b. 95% confidence interval (can you please show me how to input it onto calculator) ( I need help finding...
Consider the following summary statistics, calculated from two independent random samples taken from normally distributed populations....
Consider the following summary statistics, calculated from two independent random samples taken from normally distributed populations. Sample 1 Sample 2 x¯1=20.92 x¯2=26.80 s21=2.89 s22=3.81 n1=19 n2=15 Test the null hypothesis H0:μ1=μ2against the alternative hypothesis HA:μ1<μ2. a) Calculate the test statistic for the Welch Approximate t procedure. Round your response to at least 3 decimal places. b) The Welch-Satterthwaite approximation to the degrees of freedom is given by df = 27.983055. Using this information, determine the range in which the p-value...
Consider the following summary statistics, calculated from two independent random samples taken from normally distributed populations....
Consider the following summary statistics, calculated from two independent random samples taken from normally distributed populations. Sample 1 Sample 2 x¯1=20.08 x¯2=24.51 s21=2.05 s22=3.20 n1=19 n2=16 Test the null hypothesis H0:μ1=μ2against the alternative hypothesis HA:μ1<μ2. a) Calculate the test statistic for the Welch Approximate t procedure. Round your response to at least 3 decimal places. b) The Welch-Satterthwaite approximation to the degrees of freedom is given by df = 28.610808. Using this information, determine the range in which the p-value...
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...
section 10.3
Provided below are summary statistics for independent simple random samples from two populations. Use the nonpooled t-test and the nonpooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval X = 10,8, +2, ny = 20, X2 = 11,62 = 5, n2 = 20 a. Two-tailed test, 0.01 b. 99% confidence interval a. What are the hypotheses for the t-test? O A. Ho: H=12 Haith Oc. Ho: * HOW 2 B. HeH=2 HHH2...
section 10.3
Provided below are summary statistics for independent simple random samples from two populations. Use the nonpooled t-test and the nonpooled t-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval. *4 = 10,5 - 2, 0, -20, 72 - 11,5 - 5, n2 - 20 a. Two-tailed test, a = 0.01 b. 99% confidence interval a. What are the hypotheses for the t-test? O A HOHH2 H₂H12 Oc. Ho: H = 12 Hai H1...
Provided below are summary statistics for independent simple random samples from two populations. Use the pooled t-test and the pooled t-nterval procedure to conduct the required hypothesis test and obtain the specified confidence interval. x1 -21, s16.n11,x2-20, s2 5, n2 14 a. Right-tailed test, α-005 b, 90% confidence interval Compute the test statistic. Round to three decimal places as needed.) Determine the critical value. Round to three decimal places as neoded.) What is the conclusion of the hypothesis test? Since...
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