A random sample of 150 individuals who purchased a computer was taken. The survey determined that 70 of the individuals purchased Brand D. Which of the following is an unbiased estimate of the population proportion of all computers purchased that are Brand D?
a. .53
b. 70
c. The population proportion is not known so an unbiased estimate cannot be determined.
d. .47
Answer: d. .47
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.