If n=11, (x-bar)=36, and s=2, find the margin of error at a 98% confidence levelGive your answer to two decimal places.Submit Question

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Answered: If n=11, 7(x-bar)=36, and s=2, find the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Congratulations, you just made a confidence interval! But wait, how did we decide on the width of the interval? The middle of the interval is the sample mean. We start there, and then the "wiggle room" we give on either side of that center is called the margin of error (MOE). There's a formula for margin of error: 0 MOE = 2* √T This formula consists of three values: o is the standard deviation, n is the sample size, and z is a multiplier that we choose based on the confidence level we need. Confidence levels are expressed as percentages, the most common are 90%, 95%, and 99%: * Confidence Z Level value 90% 1.645 95% 1.96 99% 2.576 Let's practice computing a margin of error. For our earlier example about houses, suppose the standard deviation was 14 years, and the sample size was 30. Use a confidence level of 95% and determine the margin of error: σ Remember, we'll use the formula MOE = 2* . First fill in the numbers for each part of the formula: √n = σ= n = Now put it all together,…
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Express the confidence interval 89.4 % + 4.4 % in interval form. Express the answer in decimal format (do not enter as percents). Question Help: DVideo Submit Question 吕0 888 F6 F7 F4 F5 F2 F3 * @ #3 24 8 2 3 R Y w/
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Construct a confidence interval for p, - P, at the given level of confidence. X1 = 34, n1 = 273, x2 = 32, n2 = 313, 90% confidence The researchers are % confident the difference between the two population proportions, p, - P2, is between and (Use ascending order. Type an integer or decimal rounded to three decimal places as needed.)
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Please solve for margin of error and sample proportion
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If n=11, 7(x-bar)=36, and s=2, find the margin of error at a 98% confidence level Give your answer to two decimal places. Submit Question