Given two independent random samples with the following results: n1=8 x‾1=109 s1=35 n2=12 x‾2=145 s2=20 Use...

Given two independent random samples with the following results:

n1=8 x‾1=109 s1=35 n2=12 x‾2=145 s2=20

Use this data to find the 98% confidence interval for the true difference between the population means. Assume that the population variances are not equal and that the two populations are normally distributed.

Copy Data

Expert Solution

Solution:

• 98% CI for the true difference between the population mean is (−73.16, 1.16).

Calculation:

orchestra answered 1 year ago

Given two independent random samples with the following results: n1=6 x‾1=192 s1=12 n2=9 x‾2=162 s2=31 Use...

Given two independent random samples with the following results: n1=6 x‾1=192 s1=12 n2=9 x‾2=162 s2=31 Use this data to find the 90 % confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed. Step 1 of 3 : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Step 2 of 3: Find the margin...

Given two independent random samples with the following results: n1=11 x‾1=174 s1=34 n2=8 x‾2=191 s2=22 Use...

Given two independent random samples with the following results: n1=11 x‾1=174 s1=34 n2=8 x‾2=191 s2=22 Use this data to find the 90% confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed. Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Find the standard error of the sampling distribution to be used in constructing...

Given two independent random samples with the following results : n1=16 x‾1=92 s1=24 n2=12 x‾2=130 s2=31...

Given two independent random samples with the following results : n1=16 x‾1=92 s1=24 n2=12 x‾2=130 s2=31 Use this data to find the 80% confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed. Step 1 of 3: Find the point estimate that should be used in constructing the confidence interval. Step 2 of 3: Find the margin of error to be used in constructing the...

Given two independent random samples with the following results: n1=10 x‾1=90 s1=11 n2=15 x‾2=117 s2=22 Use...

Given two independent random samples with the following results: n1=10 x‾1=90 s1=11 n2=15 x‾2=117 s2=22 Use this data to find the 90% confidence interval for the true difference between the population means. Assume that the population variances are not equal and that the two populations are normally distributed. Step 1 of 3: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Step 2 of 3: Find the standard error...

Given two independent random samples with the following results: n1=9 n2=14x x‾1=180 x2=159 s1=18 s2=34 Use...

Given two independent random samples with the following results: n1=9 n2=14x x‾1=180 x2=159 s1=18 s2=34 Use this data to find the 95% confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed. Copy Data Step 1 of 3: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Step 2 of 3: Find the standard...

Given two independent random samples with the following results: n1=11 x1=141 s1=21 n2=17 x2=116 s2=24 Use...

Given two independent random samples with the following results: n1=11 x1=141 s1=21 n2=17 x2=116 s2=24 Use this data to find the 90% confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed. Step 1 of 3 : Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Step 2 of 3: Find the standard error...

Given two independent random samples with the following results: n1=18x‾1=141s1=13 n2=12x‾2=161s2=12 Use this data to find...

Given two independent random samples with the following results: n1=18x‾1=141s1=13 n2=12x‾2=161s2=12 Use this data to find the 98% confidence interval for the true difference between the population means. Assume that the population variances are not equal and that the two populations are normally distributed. Step 2 of 3 : Find the margin of error to be used in constructing the confidence interval. Round your answer to six decimal places.

Given two independent random samples with the following results: n1 463 n2 295 p1 0.77 p2 ...

Given two independent random samples with the following results: n1 463 n2 295 p1 0.77 p2 0.89 Use this data to find the 99%99% confidence interval for the true difference between the population proportions. Step 1 of 3: Find the critical value that should be used in constructing the confidence interval. Step 2 of 3: Find the value of the standard error. Round your answer to three decimal places. Step 3 of 3: Construct the 99% confidence interval. Round your...

Given two independent random samples with the following results: n1=13x‾1=180s1=21 n2=9x‾2=163s2=30 Use this data to find...

Given two independent random samples with the following results: n1=13x‾1=180s1=21 n2=9x‾2=163s2=30 Use this data to find the 99% confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed. Step 1 of 3: Find the point estimate that should be used in constructing the confidence interval. Step 2 of 3: Find the margin of error to be used in constructing the confidence interval. Round your answer...

Given two independent random samples with the following results: n1=233 pˆ1=0.63 n2=435 pˆ2=0.76 Use this data...

Given two independent random samples with the following results: n1=233 pˆ1=0.63 n2=435 pˆ2=0.76 Use this data to find the 95% confidence interval for the true difference between the population proportions. Step 1 of 3: Find the critical value that should be used in constructing the confidence interval. Step 2 of 3: Find the value of the standard error. Round your answer to three decimal places. Step 3 of 3: Construct the 95% confidence interval. Round your answers to three decimal...

Question