Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

1.) Past research has found that 'Hours of sleep within the population of the US has a Normal Distribution with a mean of 7 and

1.) Past research has found that 'Hours of sleep" within the population of the US has a Normal Distribution with a mean of 7 and a Standard Deviation of 1. Using the percentages listed in the normal distribution (34.13, 13.59, 2.15, .13) What is the probability that we would have a subject report having 8 or more hours of sleep? Type a answer as a statement within a percentage

2.) If we wanted to determine the appropriate sample size for looking at this relationship based on our alternative hypothesis, with Power 80%, Alpha set at 5%, and a large effect size of 0.8, how many people would we need to part in our study?

Alternative hypothesis: Hours of sleep have a significant effect on the consumption of coffee in a day.

Data:

Ave Cups Coffee Avg Hours Sleep
1 8
2 8
3 7
5 5
2 7
4 6
3 6
8 4
1 9
5 6
5 5
2 7
6 4
2 8
4 6
1 7
2 7
3 6
4 5
5 5

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Algebra And Trigonometry (Subscription)

Authors: Michael Sullivan, Michael Sullivan III

11th Edition

0135227712, 9780135227718

More Books

Students also viewed these Mathematics questions

Question

1. Why do we trust one type of information more than another?

Answered: 1 week ago