A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 142.6 seconds. Assuming drive-through times are normally distributed with a standard deviation of 2 seconds, complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less than 97 seconds? The probability that a randomly selected car will get through the restaurant's drive-through in less than 97 seconds is 0.0344 (Round to four decimal places as needed.) (b) What is the probability that a randomly selected car will spend more than 173 seconds in the restaurant's drive-through? The probability that a randomly selected car will spend more than 173 seconds in the restaurant's drive-through is 0.1119 (Round to four decimal places as needed.) (c) What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through? The proportion of cars that spend between 2 and 3 minutes in the restaurant's drive-through is (Round to four decimal places as needed)
A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 142.6 seconds. Assuming drive-through times are normally distributed with a standard deviation of 2 seconds, complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the probability that a randomly selected car will get through the restaurant's drive-through in less than 97 seconds? The probability that a randomly selected car will get through the restaurant's drive-through in less than 97 seconds is 0.0344 (Round to four decimal places as needed.) (b) What is the probability that a randomly selected car will spend more than 173 seconds in the restaurant's drive-through? The probability that a randomly selected car will spend more than 173 seconds in the restaurant's drive-through is 0.1119 (Round to four decimal places as needed.) (c) What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through? The proportion of cars that spend between 2 and 3 minutes in the restaurant's drive-through is (Round to four decimal places as needed)
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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I need help with part C please help.
- [Click here to view the standard normal distribution table (page 2)](#)
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**Questions and Answers:**
**(a)** What is the probability that a randomly selected car will get through the restaurant's drive-through in less than 97 seconds?
- The probability that a randomly selected car will get through the restaurant's drive-through in less than 97 seconds is **0.0344**.
(Round to four decimal places as needed.)
**(b)** What is the probability that a randomly selected car will spend more than 173 seconds in the restaurant's drive-through?
- The probability that a randomly selected car will spend more than 173 seconds in the restaurant's drive-through is **0.1119**.
(Round to four decimal places as needed.)
**(c)** What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through?
- The proportion of cars that spend between 2 and 3 minutes in the restaurant's drive-through is **[Blank Box]**.
(Round to four decimal places as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F364f8f4a-7362-494d-a7c0-26feeadafcdd%2F3ed15cc1-74e5-40e0-b3b2-8b57e45cdf55%2Fspu5gp_processed.png&w=3840&q=75)
Transcribed Image Text:**Study Summary:**
A study found that the mean amount of time cars spent in drive-throughs of a certain fast-food restaurant was 142.6 seconds. Assuming drive-through times are normally distributed with a standard deviation of 25 seconds, complete parts (a) through (d) below.
**Resources:**
- [Click here to view the standard normal distribution table (page 1)](#)
- [Click here to view the standard normal distribution table (page 2)](#)
---
**Questions and Answers:**
**(a)** What is the probability that a randomly selected car will get through the restaurant's drive-through in less than 97 seconds?
- The probability that a randomly selected car will get through the restaurant's drive-through in less than 97 seconds is **0.0344**.
(Round to four decimal places as needed.)
**(b)** What is the probability that a randomly selected car will spend more than 173 seconds in the restaurant's drive-through?
- The probability that a randomly selected car will spend more than 173 seconds in the restaurant's drive-through is **0.1119**.
(Round to four decimal places as needed.)
**(c)** What proportion of cars spend between 2 and 3 minutes in the restaurant's drive-through?
- The proportion of cars that spend between 2 and 3 minutes in the restaurant's drive-through is **[Blank Box]**.
(Round to four decimal places as needed.)
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