A television producer wants to sample the viewer preferences of four age groups:

Question

A television producer wants to sample the viewer preferences of four age groups: under 13 years old; teenagers from 13 to 18 years old; adults from 18 to 60 years old; and adults 60 years old and over. The estimated total number of viewers is 1, 200,000 of which 168,000 are under 13 years old; 264,000 are from 13 to 18; 540,000 are between 18 and 60; and 228,000 are over 60. The sample will consist of 2200 people. If stratified sampling is used, determine the number of people from each age group that should be used in the sample. Show your work and results in an organized fashion.

Explanation / Answer

AGE GROUPS NO>. Of VIEWERS No. of people choosen from the sample under 13 years 168000 168000 x 2200/1200000 = 308 13 - 18 years 264000 264000 x 2200/1200000 = 484 18 - 60 years 540000 540000 x 2200/1200000 = 990 60 years and above 228000 228000 x 2200 / 1200000 = 418

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.