Sample of individuals age

Assignment Help Basic Statistics

Reference no: EM1318449

The national sleep foundation used a survey to determine whether hours of sleeping per night are independent of age. The following show the hours of sleep on weeknights for a sample of individuals age 49 and younger and for a sample of individuals age 50 and older.

age	fewer than 6	6 to 6.9	7 to 7.9	8 or more	total
49 or younger	38	60	77	65	240
50 or older	36	57	75	92	260

a. Conduct a test of independence to determine whether the hours of sleep on weeknights are independent of age. Use α =.05 what is the p-value and what is your conclusion.

b. What IS your estimate of the percentage of people who sleep fewer than 6hours, 6 to 6.9 hours, 7 to 7.9 hours and 8 or more hours on weeknights?

Reference no: EM1318449

Questions Cloud

Describing potential threats to internal validity : Recognize and describe potential threats (up to 3) to internal validity.

Prove the given homomorphism : Prove the given Φ is either a trival homomorphism or 1- 1.

Current tqm and continuous improvement strategies : Choose an organization (larger is usually better but it is your choice). Research the organization. In a 750 word essay determine and report on the company's current TQM and Continuous Improvement strategies.

Simplify the following inequality & graph the solution : Simplify the following inequality Simplify the following inequality & graph the solution.

Sample of individuals age : The following show the hours of sleep on weeknights for a sample of individuals age 49 and younger and for a sample of individuals age 50 and older.

Evaluate the velocity vector at a particular point : Evaluate the velocity vector at a particular point, vector projection of acceleration and the length of the curve between two points.

Creating a static method : Write down a static method, getBigWords, which takes a String parameter and returns an array whose elements are words in the parameter that consists of more than 5 letters.

Computing value using goodness-of-fit test : Using goodness-of-fit test and.01 level of significance, find out whether accidents are evenly distributed all through the day. Write a short description of your conclusion.

Simplify the following inequality : Simplify the following inequality.

User Account

All Pages