Posted by Ana on Sunday, May 15, 2011 at 4:05pm.
Do more than 50% of US adults get enough sleep? According to the Gallup organization's December 2004 Lifestyle Poll, 55% of US adults said that they get enough sleep. The poll was based on a random sample of 1003 adults. Test an appropriate hypothesis and state your conclusion in the context of the problem.

Statistics  MathGuru, Monday, May 16, 2011 at 6:25pm
Null hypothesis:
Ho: p = .50 >meaning: population proportion is equal to .50
Alternative hypothesis:
Ha: p > .50 >meaning: population proportion is greater than .50
Using a formula for a binomial proportion onesample ztest with your data included, we have:
z = (.55  .50)/√(.50)(.50)/1003
Once you have the test statistic, you can go from there to draw your conclusions.

Statistics  Anonymous, Friday, February 10, 2017 at 2:28pm
2
Answer This Question
Related Questions
 Stats  Do more than 50% of US adults get enough sleep? According to the Gallup ...
 Statistics  According to a poll, 20% of adults smoke. In a random sample of 75 ...
 statistics  A Gallup Poll asked, "In general, how often do you experience ...
 statistics  In a Gallup poll, 1003 adults were called after their telephone ...
 statistics  According to a Harris Interactive poll conducted in 2009, 20% of ...
 statistics  in 1995,the gallup poll asked a sample of 620 adults whether their ...
 Statistics  A Today/CNN/Gallup Poll of 1015 adults found that 13% approved of ...
 Statistics  In a Gallup poll of 1038 adults, 540 said that secondhand smoke is...
 statistics  In a gallup poll of 1,038 adults, 540 said that second hand smoke ...
 statistics  According to a USA Today poll conducted in February 2009, 83% of ...
More Related Questions