**Lunch break:** In a recent survey of 608 working Americans ages 25-34, the average weekly amount spent on lunch is $45.08 with a standard deviation of $2.66. The weekly amounts are approximately bell-shaped.### Part: 0 / 3### Part 1 of 3(a) Estimate the percentage of amounts that were less than $42.42. Round the answer to one decimal place.Approximately ______ % of the amounts were less than $42.42. (There is a text box and buttons for submitting the response, resetting the input, and cancelling the input. The buttons have the symbols 'X', '⟲', and a check mark respectively).---**Explanation for Educators:**This exercise involves understanding the concepts of mean, standard deviation, and the bell-shaped (normal) distribution. Using the given parameters, students are expected to calculate the percentage of amounts below a certain value using the properties of the normal distribution. 1. **Mean ($\mu$):** The average weekly amount spent on lunch is $45.08.2. **Standard Deviation ($\sigma$):** The standard deviation is $2.66.3. **Value to Compare ($X$):** The amount to be compared is $42.42.Since the distribution is approximately normal, students can use the Z-score formula to find the required percentage:\[ \text{Z} = \frac{X - \mu}{\sigma} \]1. Compute the Z-score.2. Use the Z-score table to find the corresponding percentage of values below this Z-score.3. Round the result to one decimal place as instructed.

Given that mean =45.08 ,s.d =2.66 P ( x < 42.42 ) = ?

Lunch break: In a recent survey of 608 working Americans ages 25-34, the average weekly amount spent on lunch as $45.08 with standard deviation $2.66. The weekly amounts are approximately bell-shaped. Part: 0 / 3 Part 1 of 3 (a) Estimate the percentage of amounts that were less than $42.42. Round the answer to one decimal place. Approximately % of the amounts were less than $42.42.

Lunch break: In a recent survey of 608 working Americans ages 25-34, the average weekly amount spent on lunch as $45.08 with standard deviation $2.66. The weekly amounts are approximately bell-shaped. Part: 0 / 3 Part 1 of 3 (a) Estimate the percentage of amounts that were less than $42.42. Round the answer to one decimal place. Approximately % of the amounts were less than $42.42.

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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