A random sample of 56 households was selected for a phone survey. The key question asked was, "Do you or any member of your household own a product from Company A?" of the 56 respondents, 42 say yes and 14 said no.
A. determine the same population, p, of households that own a Company A product.
B. If the population proportion is 0.75, determine the standard error of the proportion.
a. p =
A) sample proportion of households that own a Company A product
(P) =
Where
( x= 42 ) is the households that own a Company A product.
(n= 56) is the sample size.
P= = 0.75
P = 0.75
B) Standard error of proportion
=
Where p= 0.75 , n =56
0.0578637562
0.0579
Get Answers For Free
Most questions answered within 1 hours.