New research shows that members of a certain youth generation have a great say i
ID: 2947466 • Letter: N
Question
New research shows that members of a certain youth generation have a great say in household purchases.? Specifically, 65?% of the people in the generation have a say in computer purchases. Suppose you select a sample of 100 respondents from the generation.
b. TheProbabilit.is90%that the sample percentage. will be contained within what symmetrical mitsofthepopulation.Percentage? % and below The probability is 90% that the sample percentage will be contained above | Type integers or decimals rounded to one decimal place as needed.) 96.Explanation / Answer
Ans:
Standard error of p=sqrt(0.65*(1-0.65)/100)=0.0477
z=1.645
Lower limit=0.65-1.645*0.0477=0.572 or 57.2%
Upper limit=0.65+1.645*0.0477=0.728 or 72.8%