Home /
Expert Answers /
Statistics and Probability /
the-lower-bound-of-the-confidence-interval-is-calculated-using-the-expression-bar-x-2-frac-d-pa550

The lower bound of the confidence interval is calculated using the expression \( \bar{x}-2, \frac{d}{\sqrt{n}} \). 5 ubstitute the values \( \bar{x}=37, z \) an \( =1.645, d=5 \), and \( n=60 \) into this formula and simplify, founding the final value to two decimal places. \[ x-7 \times \frac{\pi}{\sqrt{n}}=37-\left(\frac{5}{\sqrt{60}}\right) \] The upper bound is found in a simiar fashion, but now we will add the margin of error instead of subtracting a. Again, round the final value to two decimai piaces. \[ x+2+2 \frac{a}{\sqrt{n}}=37+\left(\frac{5}{\sqrt{60}}\right) \] Thus, a \( 90 \% \) confidence interval for the poputation mean in a sample of 60 items with a sample mean of 37 and a population standard deviation of 5 is

Live Sessions

Online Lab Report Help

Online Project Report Help

Online Assignment Help

Essay Writing Help

CPM Homework Help

Mortgage Calculator

Electrical Engineering

Civil Engineering

Chemical Engineering

Electronics and Communication Engineering

Mathematics

Physics

Chemistry

Software Works/ Computer Science

Other Subjects

100% Correct Solutions

24/7 Availability

One stop destination for all subject

Cost Effective

Solved on Time

Plagiarism Free Solutions

Confidentiality