Calculate the margin of error of a confidence interval for the difference between two population means using the given information. Round your answer to six decimal places. σ1=13.23, n1=62, σ2=16.27, n2=58, α=0.02
Calculate the margin of error of a confidence interval for the difference between two population means...
Calculate the margin of error of a confidence interval for the difference between two population means using the given information. Round your answer to six decimal places. σ1=7.94 , n1=62, σ2=11.25, n2=53 , c=0.85
Calculate the margin of error of a confidence interval for the difference between two population means using the given information. Round your answer to six decimal places. σ1=11.85, n1=79, σ2=15.33, n2=82, α=0.15
Calculate the margin of error of a confidence interval for the difference between two population means using the given information. Round your answer to six decimal places. σ1=13.94, n1=117, σ2=10.65, n2=137, c=0.9
Calculate the margin of error of a confidence interval for the difference between two population means using the given information. Round your answer to six decimal places. σ1=8.35, n1=94, σ2=11.61, n2=84, c=0.98
Calculate the margin of error of a confidence interval for the difference between two population means using the given information. Round your answer to 3 decimal places. ?1 = 14.11, ?1 = 78, ?2 = 10.84, ?2 = 91, ? = 0.8
a) Use the t-distribution to find a confidence interval for a difference in means μ1-μ2 given the relevant sample results. Give the best estimate for μ1-μ2, the margin of error, and the confidence interval. Assume the results come from random samples from populations that are approximately normally distributed. A 90% confidence interval for μ1-μ2 using the sample results x¯1=8.8, s1=2.7, n1=50 and x¯2=13.3, s2=6.0, n2=50 Enter the exact answer for the best estimate and round your answers for the margin...
. Given: n1 = 50, x¯1 = 16.735, σ1 = 1.14, n2 = 45, x¯2 = 14.384, σ2 = 1.592 (a) (2 points) Round given data to one-decimal place, and then complete the following table. Sample 1 Sample 2 n1 = n2 = x¯1 = x¯2 = σ1 = σ2 = (b) (3 points) Construct 99% confidence interval for the difference between population means µ1 − µ2 using data summarized in the table. (b) Page 2 of 4 Study Guide...
Construct the indicated confidence interval for the difference between the two population means. Assume that the assumptions and conditions for inference have been met. A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. Use the sample data below to construct a 99% confidence interval for μ1-μ2, where H1 and H2 represent the population means for the treatment group and the control group, respectively. Treatment GolGroup n1 85 n2...
Calculate the margin of error and construct a confidence interval for the population proportion using the normal approximation to the p̂ p̂ -distribution (if it is appropriate to do so). Standard Normal Distribution Table a. p̂ =0.85, n=140, α =0.2 p̂ =0.85, n=140, α =0.2 E=E= Round to four decimal places Enter 0 if normal approximation cannot be used < p < < p < Round to four decimal places Enter 0 if normal approximation cannot be used b. p̂ =0.3, n=160, α =0.2 p̂ =0.3, n=160, α =0.2...
Step 3 of 4: Calculate the margin of error to be used in constructing the confidence interval. Round your answer to six decimal places. Step 4 of 4: Construct the 98% confidence interval. Round your answers to one decimal place. A state legislator wants to determine whether his voters' performance rating (0 - 100) has changed from last year to this year. The following table shows the legislator's performance from the same ten randomly selected voters for last year and...