Use critical value approach to test the researchers claim

Assignment Help Management Theories

Reference no: EM131460949

Question: An article in the National Geographic News (February 24, 2005) reports that Americans are increasingly skimping on their sleep. A researcher wants to determine if Americans are sleeping less than the recommended 7 hours of sleep on weekdays. He takes a random sample of 150 Americans and computes the average sleep time of 6.7 hours on weekdays. Assume that the population is normally distributed with a known standard deviation of 2.1 hours.

a. Use the p -value approach to test the researchers claim at α = 0.01.

b. Use the critical value approach to test the researchers claim at α = 0.01.

Reference no: EM131460949

Questions Cloud

Describe the critical value approach : It is advertised that the average braking distance for a small car traveling at 65 miles per hour equals 120 feet. A transportation researcher wants.

Looking at the multiple problems : Personally, I am a runner. Looking at the multiple problems we have reviewed there are some categorical variables I would like to learn more about when it comes

Determine the five trends or movements : Provide a brief introduction describing the steps you took to determine the five trends or movements. Describe how each of your choices will impact learning.

Explore the measuring behavior web site from hcps : It is strongly recommended that you take the time to explore the Measuring Behavior Web site from HCPS Intervention Central for additional reading and resources on measuring behavior, recording forms, and graphing behavior and skills.

Use critical value approach to test the researchers claim : An article in the National Geographic News (February 24, 2005) reports that Americans are increasingly skimping on their sleep. A researcher wants to determine.

What is the probability of testing positive : A laboratory blood test gives a positive reading for 95% of people who have the disease and 10% positive reading of people who do not have the disease.

Standardize a normal random variable : 1. In what ways a standard normal distribution is different from just a normal distribution? 2. How do you standardize a normal random variable?

Explain a brief outline of the tutorial you will present. : Explain a brief outline of the tutorial you will present. Explain why you chose to teach the tool the way you did (Why did you use Jing, for example?).

Identify and discuss the elements of the fraud triangle : Explain why the internal control practice of separation of duties failed to prevent the fraudulent reporting - Identify and discuss the elements of the fraud triangle that motivated the fraud.

User Account

All Pages