Pooled proportion = ( x1 + x2) / ( n1 + n2 ) = ( 390 + 139 ) / ( 532 + 730 ) = 0.4192
1 = 390 / 532 = 0.7331 , = 139 / 730 = 0.1904
Margin of error = Z/2 * sqrt [ ( 1 - ) * ( 1 / n1 + 1 / n2 ) ]
= 1.6449 * sqrt [ 0.4192 * ( 1 - 0.4192) * ( 1 / 532 + 1 / 730 ) ]
= 0.046267
Consider two independent random samples with the following results: n = 532 n2 = 730 X...
Consider two independent random samples with the following results: n1=123pˆ1=0.48 n2=367pˆ2=0.63 Use this data to find the 80% 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. Step 2 of 3: Find the value of the margin of error. Round your answer to six decimal places. Step 3 of 3: Construct the 80% confidence interval. Round your answers to...
Given two independent random samples with the following results: ni = 15 n2 = 13 Xi = 153 X2 = 114 $i = 19 S2 = 21 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...
Given two independent random samples with the following results: n1=8 x‾1=166 s1=28 n2=12 x‾2=194 s2=25 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. Copy Data 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=604pˆ1=0.61 n2=371pˆ2=0.26 Use this data to find the 90% 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 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...
01:28:54 Consider two independent random samples with the following results: n1 = 136 n2 = 235 Use this data to find the 98 % 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. 2 Points KeypadTables Answer (How to Enter) ^ 빠 .com/Portal/Test/test taketest T0 to search up
15 Correct Given two independent random samples with the following results: n = 13 = 142 12 = 165 $ = 13 Use this data to find the 98% 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 point estimate that should be used in constructing the confidence interval. Answer How to enter your answer...
Given two independent random samples with the following results: n1=399x1=267 n2=360x2=162 Use this data to find the 98% confidence interval for the true difference between the population proportions. Step 4 of 4 : Construct the 98% confidence interval. Round your answers to three decimal places
Given two independent random samples with the following results: Given two independent random samples with the following results: ni = 586 n2 = 404 x = 161 X2 = 68 Can it be concluded that there is a difference between the two population proportions? Use a significance level of a= 0.05 for the test. Copy Data Step 1 of 6: State the null and alternative hypotheses for the test. Answer 2 Points Keypad Ho: P1 HAPI P2 - P2 Step...
Given two independent random samples with the following results: n1 297 n2 93 p1 0.67 p2 0.41 Use this data to find the 98% 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 98% confidence interval. Round your...
Given two independent random samples with the following results: n1=13x‾1=102s1=23n1=13x‾1=102s1=23 n2=7x‾2=117s2=32n2=7x‾2=117s2=32 Use this data to find the 99%99% 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.