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Part B calculate the test statistic as well
4 of 4(1 10.2.21 x2-145 n2:18 sample HO...
4 of 4G3 10.2.21 Given the null and deviatons shown tothe right, conduct a hypothesis Him-m<0...
4 of 4G3 10.2.21 Given the null and deviatons shown tothe right, conduct a hypothesis Him-m<0 sample Ho: μ,-μ2 20x1-128x2-145 σ2 .18 standard σΊ9 test using an alpha level equal to 0.05. Calculate the value of the test statistic. (Round to two decimal places as needed.) in the AI part 1 F
Sample 1 Sample 2 n1 = 15 n2 = 13 x1 =54 x2 = s1 =39...
Sample 1 Sample 2 n1 = 15 n2 = 13 x1 =54 x2 = s1 =39 77 s2=46 Independent random samples selected from two normal populations produced the sample means and standard deviations shown to the right a. Assuming equal vanances, conduct the test Ho (μι-μ2) 0 against H. (m-H2)" 0 using α 0 05 b. Find and interpret the 95% confidence interval for (P:- a. Find the test statistic The test statistic is Round to two decimal places as...
Independent random samples selected from two normal populations produced the sample means and standard dev atons...
Independent random samples selected from two normal populations produced the sample means and standard dev atons shown to the right. a. Assuming equal variances, conduct the test Ho: (μι-μ2)-U against Ha: μι-μ2) #0 using α .10. b. Find and interpret the 90% confidence interval for(μ1-μ2) Sample 1 Sample 2 x1 59 x2-7.9 13 2-4.8 a. Find the trst statistic. The test statistic is Round to two decimal places as needed.) ind the p vaue. The p-value is Round to three...
QUESTION 6 1 points s Consider the hypothesis test Ho μι-μ2 against H, μι-μ 2 ....
QUESTION 6 1 points s Consider the hypothesis test Ho μι-μ2 against H, μι-μ 2 . Suppose that sample sizes are n1-15 and n2-15 and X, 4.5 and X2 -8.0 and that s-4 and s-6.18. Assume that the data are drawn from normal distributions. Compute the p-value of the test statistics. Round your answer to 4 decimal places
10-13.. Consider the hypothesis test H0 : μι Ma against , : μ.< μ2. Suppose that sample sizes n-15 and n-15, that 7.2 and x2-7.9, and that si 4 and s 6.25. Assume that σ-σ and that the data ar...
10-13.. Consider the hypothesis test H0 : μι Ma against , : μ.< μ2. Suppose that sample sizes n-15 and n-15, that 7.2 and x2-7.9, and that si 4 and s 6.25. Assume that σ-σ and that the data are drawn from normal distribu- tions. Use α 0.05 (a) Test the hypothesis and find the P-value (b) Explain how the test could be conducted with a confidence interval. than μ2? be used to obtain B 0.05 if u, is 2.5...
Given the null and alternative hypotheses below, a level of significance a = 0.1, together with...
Given the null and alternative hypotheses below, a level of significance a = 0.1, together with the accompanying sample information conduct the appropriate hypothesis test using the p-value approach. What conclusion would be reached concerning the null hypothesis? Ho: P1 = P2 HA:21 #P2 Х The sample information Click on the icon to view the sample information. Determine the value of the test statistic. Sample 1 Sample 2 Z= (Round to three decimal places as needed.) ny = 178 X1...
A paired difference experiment produced the data given below. Complete parts a through e below nd = 16-1 = 148 x2 = 152 xd =-4 s -25 a. Determine the values of t for which the null hypothesis μι-μ2-0...
A paired difference experiment produced the data given below. Complete parts a through e below nd = 16-1 = 148 x2 = 152 xd =-4 s -25 a. Determine the values of t for which the null hypothesis μι-μ2-0 would be rejected in favor of the alternative hypothesis μι-μ·0. Use α-0.05. (Round to two decimal places as needed.) XA. The rejection region ist< ort» O B. The rejection region is t> ° C. The rejection region is <t< D. The...
14 of 19 (14 complete) This Test 19 pts pos Overview, question 14 of 19, 14...
14 of 19 (14 complete) This Test 19 pts pos Overview, question 14 of 19, 14 complete Question Help Is the $9000? To decide, you select a random sample of statisticians from each region. The results of each survey are shown to the right. At α 0.10, what should you conclude? ce between the mean annual salaries of statisticians in Region 1 and Region 2 more than Region 1 x1 $67,100 o, $8975 n1 47 Region 2 x2 $61,000 σ2...
You may need to use the appropriate technology to answer this question. Consider the following hypothesis...
You may need to use the appropriate technology to answer this question. Consider the following hypothesis test. The following results are from independent samples taken from two populations assuming the variances are unequal Sample 1 Sample 2 n1-352 x1-13.6x2-10.1 s, 5.5 s = 8.1 n2-40 (a) What is the value of the test statistic? (Use X1-x2. Round your answer to three decimal places.) (b) What is the degrees of freedom for the t distribution? (Round your answer down to the...
Assume that you have a sample of n 1-7, with the sample mean X1-43, and a...
Assume that you have a sample of n 1-7, with the sample mean X1-43, and a sample standard deviation of S1-4, and you have an independent sample of n2-13 from another population with a sample mean of x2 39 and the sample standard deviation S2-7. Complete parts (a) through (d). Click here for page 1 of critical values oft. Click here for page 2 of critical values of t. a. What is the value of the pooled-variance ISTAT test statistic...
4 of 4G3 10.2.21 Given the null and deviatons shown tothe right, conduct a hypothesis Him-m<0 sample Ho: μ,-μ2 20x1-128x2-145 σ2 .18 standard σΊ9 test using an alpha level equal to 0.05. Calculate the value of the test statistic. (Round to two decimal places as needed.) in the AI part 1 F
Sample 1 Sample 2 n1 = 15 n2 = 13 x1 =54 x2 = s1 =39 77 s2=46 Independent random samples selected from two normal populations produced the sample means and standard deviations shown to the right a. Assuming equal vanances, conduct the test Ho (μι-μ2) 0 against H. (m-H2)" 0 using α 0 05 b. Find and interpret the 95% confidence interval for (P:- a. Find the test statistic The test statistic is Round to two decimal places as...
Independent random samples selected from two normal populations produced the sample means and standard dev atons shown to the right. a. Assuming equal variances, conduct the test Ho: (μι-μ2)-U against Ha: μι-μ2) #0 using α .10. b. Find and interpret the 90% confidence interval for(μ1-μ2) Sample 1 Sample 2 x1 59 x2-7.9 13 2-4.8 a. Find the trst statistic. The test statistic is Round to two decimal places as needed.) ind the p vaue. The p-value is Round to three...
QUESTION 6 1 points s Consider the hypothesis test Ho μι-μ2 against H, μι-μ 2 . Suppose that sample sizes are n1-15 and n2-15 and X, 4.5 and X2 -8.0 and that s-4 and s-6.18. Assume that the data are drawn from normal distributions. Compute the p-value of the test statistics. Round your answer to 4 decimal places
10-13.. Consider the hypothesis test H0 : μι Ma against , : μ.< μ2. Suppose that sample sizes n-15 and n-15, that 7.2 and x2-7.9, and that si 4 and s 6.25. Assume that σ-σ and that the data are drawn from normal distribu- tions. Use α 0.05 (a) Test the hypothesis and find the P-value (b) Explain how the test could be conducted with a confidence interval. than μ2? be used to obtain B 0.05 if u, is 2.5...
Given the null and alternative hypotheses below, a level of significance a = 0.1, together with the accompanying sample information conduct the appropriate hypothesis test using the p-value approach. What conclusion would be reached concerning the null hypothesis? Ho: P1 = P2 HA:21 #P2 Х The sample information Click on the icon to view the sample information. Determine the value of the test statistic. Sample 1 Sample 2 Z= (Round to three decimal places as needed.) ny = 178 X1...
A paired difference experiment produced the data given below. Complete parts a through e below nd = 16-1 = 148 x2 = 152 xd =-4 s -25 a. Determine the values of t for which the null hypothesis μι-μ2-0 would be rejected in favor of the alternative hypothesis μι-μ·0. Use α-0.05. (Round to two decimal places as needed.) XA. The rejection region ist< ort» O B. The rejection region is t> ° C. The rejection region is <t< D. The...
14 of 19 (14 complete) This Test 19 pts pos Overview, question 14 of 19, 14 complete Question Help Is the $9000? To decide, you select a random sample of statisticians from each region. The results of each survey are shown to the right. At α 0.10, what should you conclude? ce between the mean annual salaries of statisticians in Region 1 and Region 2 more than Region 1 x1 $67,100 o, $8975 n1 47 Region 2 x2 $61,000 σ2...
You may need to use the appropriate technology to answer this question. Consider the following hypothesis test. The following results are from independent samples taken from two populations assuming the variances are unequal Sample 1 Sample 2 n1-352 x1-13.6x2-10.1 s, 5.5 s = 8.1 n2-40 (a) What is the value of the test statistic? (Use X1-x2. Round your answer to three decimal places.) (b) What is the degrees of freedom for the t distribution? (Round your answer down to the...
Assume that you have a sample of n 1-7, with the sample mean X1-43, and a sample standard deviation of S1-4, and you have an independent sample of n2-13 from another population with a sample mean of x2 39 and the sample standard deviation S2-7. Complete parts (a) through (d). Click here for page 1 of critical values oft. Click here for page 2 of critical values of t. a. What is the value of the pooled-variance ISTAT test statistic...
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