### Determining the 95% Confidence Interval for Mean Weight of PackagesIn this example, we have 25 packages that are randomly selected from packages received by a parcel service. The sample has a mean weight of 21.7 pounds. Assume that the standard deviation (σ) is 2.8 pounds.**Question:**What is the 95% confidence interval for the true mean weight, μ, of all packages received by the parcel service?### Multiple Choice Options:- $ \boxed{X} $ $ 20.6 \text{ to } 22.8 \text{ pounds} $- $ \boxed{} $ $ 20.2 \text{ to } 23.2 \text{ pounds} $- $ \boxed{} $ $ 20.7 \text{ to } 22.7 \text{ pounds} $- $ \boxed{} $ $ 20.8 \text{ to } 22.6 \text{ pounds} $To determine the correct confidence interval, we need to use the formula for the confidence interval for the mean, given by:\[ \bar{x} \pm Z \left( \frac{\sigma}{\sqrt{n}} \right) \]Where:- $ \bar{x} $ is the sample mean- $ σ $ is the population standard deviation- $ n $ is the sample size- $ Z $ is the Z-value from the standard normal distribution for the desired confidence level (for 95%, Z ≈ 1.96)

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25 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 21.7 pounds. Assume that o=2.8 pounds. What Is the 95% confidence interval for the true mean weight, u, of all packages recelved by the parcel service? O20.6 to 22.8 pounds O 20.2 to 23.2 pounds O 20.7 to 22.7 pounds O 20.8 to 22.6 pounds

25 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 21.7 pounds. Assume that o=2.8 pounds. What Is the 95% confidence interval for the true mean weight, u, of all packages recelved by the parcel service? O20.6 to 22.8 pounds O 20.2 to 23.2 pounds O 20.7 to 22.7 pounds O 20.8 to 22.6 pounds

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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