Question

In: Statistics and Probability

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 error of the sampling distribution to be used in constructing the confidence interval. Round your answer to the nearest whole number.

Step 3 of 3:

Construct the 95%95% confidence interval. Round your answers to the nearest whole number.

Solutions

Expert Solution


Related Solutions

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=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=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=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
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=122 n2=329 x1=43 x2=89 Can it be...
Given two independent random samples with the following results: n1=122 n2=329 x1=43 x2=89 Can it be concluded that there is a difference between the two population proportions? Use a significance level of α=0.1α=0.1 for the test. Step 5 of 6 :   Find the P-value for the hypothesis test. Round your answer to four decimal places. CORRECT ANSWER: P= 0.0930 CORRECT ANSWER: P= 0.0930 CORRECT ANSWER: P= 0.0930 CORRECT ANSWER: P= 0.0930 CORRECT ANSWER: P= 0.0930
Consider two independent random samples with the following results: n1 =653 x1 =355     n2 =597 x2...
Consider two independent random samples with the following results: n1 =653 x1 =355     n2 =597 x2 =201 Use this data to find the 90% confidence interval for the true difference between the population proportions. Copy Data Step 1 of 3 : Find the point estimate that should be used in constructing the confidence interval. Round your answer to three decimal places.
Given two independent random samples with the following results: n1=586......n2=404 x1=161.....x2=68 Can it be concluded that...
Given two independent random samples with the following results: n1=586......n2=404 x1=161.....x2=68 Can it be concluded that there is a difference between the two population proportions? Use a significance level of α=0.05 for the test. Step 1 of 6: State the null and alternative hypotheses for the test. Step 2 of 6: Find the values of the two sample proportions, pˆ1 and pˆ2. Round your answers to three decimal places. Step 3 of 6: Compute the weighted estimate of p, p‾‾....
Consider two independent random samples with the following results: n1=158        n2=101 x1=136    x2=45 Use this data...
Consider two independent random samples with the following results: n1=158        n2=101 x1=136    x2=45 Use this data to find the 90% confidence interval for the true difference between the population proportions. Step 1 of 3: Find the point estimate that should be used in constructing the confidence interval. Round your answer to three decimal places Step 2 of 3: Find the margin of error. Round your answer to six decimal places. Step 3 of 3: Construct the 90% confidence interval. Round...
NEED ASAP Given two independent random samples with the following results: n1=195 x1=30    n2=408 x2=144 Can...
NEED ASAP Given two independent random samples with the following results: n1=195 x1=30    n2=408 x2=144 Can it be concluded that there is a difference between the two population proportions? Use a significance level of α=0.02 for the test. Step 1 of 6: State the null and alternative hypotheses for the test. Step 2 of 6: Find the values of the two sample proportions, pˆ1 and pˆ2. Round your answers to three decimal places. Step 3 of 6: Compute the weighted...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT