### Confidence Interval Computation Tool#### Inputs:- **Sample size:**- **Point estimate:**- **Population standard deviation:**- **Critical value:**Click the "Compute" button to calculate:- **Standard error:**- **Margin of error:**- **95% confidence interval:**#### Confidence Level Table:| Confidence level | Critical value ||------------------|----------------|| 99% | 2.576 || 95% | 1.960 || 90% | 1.645 |#### Exercise:(b) Based on your sample, enter the lower and upper limits to graph the 95% confidence interval for the population mean of the battery lifetimes for all phones of the manufacturer's latest model.#### Graph:- **95% Confidence Interval Slider:** - Displays a draggable line which represents the range for the confidence interval. - The scale is from 0.00 to 10.00, allowing you to adjust the lower and upper bounds.This tool assists in visualizing and calculating confidence intervals for statistical analysis in determining population parameters. ### Estimating the Population Mean of Battery LifetimesA cell phone manufacturer has hired you to estimate the population mean of the battery lifetimes for all phones of their latest model. Battery lifetime is measured as the time it takes for the battery charge to run out while a tester streams videos on the phones continuously. A random sample of 45 cell phones of the latest model is selected, and their battery lifetimes are recorded. The population standard deviation of the battery lifetimes for this model is assumed to be 2.42 hours.#### TaskBased on your sample, follow the steps below to construct a 95% confidence interval for the population mean of the battery lifetimes for all phones of the manufacturer's latest model. (If necessary, consult a list of formulas.)#### Instructions1. **Click on "Take Sample"** to see the results from your random sample of 45 phones of the manufacturer's latest model. ![Diagram of Sample Data](diagram-placeholder) **Table: Sample Data** | Number of phones | Sample mean | Sample standard deviation | Population standard deviation | |------------------|-------------|---------------------------|-------------------------------| | 45 | 5.49 | 2.15 | 2.42 |2. **Enter the following values:** - **Sample size** - **Point estimate for the population mean** - **Population standard deviation** - **Critical value for your 95% confidence interval** (Choose from the provided table of critical values.)3. **Compute the Results:** - Enter the values in the provided fields for sample size, point estimate, population standard deviation, and critical value. - Then, click "Compute" to calculate the standard error and construct the confidence interval.**Note:** Ensure you follow the instructions and input the relevant values accurately to determine the correct confidence interval.

It is given that the information of one sample for calculating the confidence interval for normal…

Answered: (b) Based on your sample, enter 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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(b) Based on your sample, enter the lower and upper limits to graph the 95% confidence interval for the population mean of the battery lifetimes for al phones of the manufacturer's latest model. 0.00 0.00 2.00 95% confidence interval: 4.00 6.00 8.00 10.00 10.00