The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 68 minutes and a standard deviation of 15 minutes. Suppose one person at the hot springs is randomly chosen. Let X = the amount of time that person spent at Grover Hot Springs. Round all answers to 4 decimal places where possible. a. What is the distribution of X? \[ X \sim N(68, 15) \] b. Find the probability that a randomly selected person at the hot springs stays longer than 64 minutes. \[ \text{Probability} = 0.6051 \] c. The park service is considering offering a discount for the 5% of their patrons who spend the least time at the hot springs. What is the longest amount of time a patron can spend at the hot springs and still receive the discount? \[ \text{Time} = \_ \_ \_ \_ \text{ minutes} \] d. Find the Interquartile Range (IQR) for time spent at the hot springs. - Q1: \_ \_ \_ \_ \text{ minutes} - Q3: \_ \_ \_ \_ \text{ minutes} - IQR: \_ \_ \_ \_ \text{ minutes} Hint: Enter an integer or decimal number, accurate to at least 4 decimal places.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

I need help with c and d 

The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 68 minutes and a standard deviation of 15 minutes. Suppose one person at the hot springs is randomly chosen. Let X = the amount of time that person spent at Grover Hot Springs. Round all answers to 4 decimal places where possible.

a. What is the distribution of X? 
\[ X \sim N(68, 15) \]

b. Find the probability that a randomly selected person at the hot springs stays longer than 64 minutes.
\[ \text{Probability} = 0.6051 \]

c. The park service is considering offering a discount for the 5% of their patrons who spend the least time at the hot springs. What is the longest amount of time a patron can spend at the hot springs and still receive the discount?
\[ \text{Time} = \_ \_ \_ \_ \text{ minutes} \]

d. Find the Interquartile Range (IQR) for time spent at the hot springs.
- Q1: \_ \_ \_ \_ \text{ minutes}
- Q3: \_ \_ \_ \_ \text{ minutes}
- IQR: \_ \_ \_ \_ \text{ minutes} 

Hint: Enter an integer or decimal number, accurate to at least 4 decimal places.
Transcribed Image Text:The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 68 minutes and a standard deviation of 15 minutes. Suppose one person at the hot springs is randomly chosen. Let X = the amount of time that person spent at Grover Hot Springs. Round all answers to 4 decimal places where possible. a. What is the distribution of X? \[ X \sim N(68, 15) \] b. Find the probability that a randomly selected person at the hot springs stays longer than 64 minutes. \[ \text{Probability} = 0.6051 \] c. The park service is considering offering a discount for the 5% of their patrons who spend the least time at the hot springs. What is the longest amount of time a patron can spend at the hot springs and still receive the discount? \[ \text{Time} = \_ \_ \_ \_ \text{ minutes} \] d. Find the Interquartile Range (IQR) for time spent at the hot springs. - Q1: \_ \_ \_ \_ \text{ minutes} - Q3: \_ \_ \_ \_ \text{ minutes} - IQR: \_ \_ \_ \_ \text{ minutes} Hint: Enter an integer or decimal number, accurate to at least 4 decimal places.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman