Answered step by step
Verified Expert Solution
Question
...
1 Approved Answer
The hours of sleep each day for American adults are assumed to be normal with a mean of 6.8 hours and standard deviation of 0.9
The hours of sleep each day for American adults are assumed to be normal with a mean of 6.8 hours and standard deviation of 0.9 hours. Answer the following round answers to 3 decimal places. 1. How many hours per day must you sleep tonight to be in the 25th percentile? 2.find the probability that a randomly selected American sleeps somewhere between 6.1 and 7.5 hours per day 3. Find the probability that a random sample of 9 Americans will have a mean of more than 7.2 hours of sleep per day
Step by Step Solution
There are 3 Steps involved in it
Step: 1
![blur-text-image](https://dsd5zvtm8ll6.cloudfront.net/includes/images/document_product_info/blur-text-image.webp)
Get Instant Access with AI-Powered Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
![blur-text-image](https://dsd5zvtm8ll6.cloudfront.net/includes/images/document_product_info/blur-subtext-image.webp)
Step: 3
![blur-text-image](https://dsd5zvtm8ll6.cloudfront.net/includes/images/document_product_info/blur-subtext-image.webp)
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started