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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Sociology: Age Distribution A sociologist is studying the age of the population in Blue Valley. Ten years ago, the population was such that 20% were under 20 years old, 15% were in the 20- to 35-year-old bracket, 30% were between 36 and 50, 25% were between 51 and 65, and 10% were over 65. A study done this year used a random sample of 210 residents. This sample showed
|
Under 20 |
20–35 |
36–50 |
51–65 |
Over 65 |
|
26 |
27 |
69 |
68 |
20 |
At the 0.01 level of significance, has the age distribution of the population of Blue Valley changed?
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