Question

A researcher wants to know if senior citizens are happy with their quality of life She asks the question to 1258 randomly chosen senior citizens and 62% say “yes”. Circle all correct statements:

a. The 62% corresponds to the variable p ˆ .

b. The population consists of all senior citizens who are happy with their quality of life.

c. The sample consists of the 1258 randomly chosen senior citizens

d. Using this sample, we can be very confident that more than half of all senior citizens would say “yes” to this question.

e. If another researcher did a similar study with a sample of 1258 senior citizens they would get the same percentage (62%) because the sample is the same size.

Answer 1

a) corresponds to the proportion of senior citizens who are happy with their quality of life.

. Hence CORRECT

b) The population represents all the senior citizens. Hence all the senior citizens who are happy with their quality of life. CORRECT.

c) The sample consists of the 1258 randomly chosen senior citizens. CORRECT.

d) Since , we can be very confident that more than half of all senior citizens would say “yes” to this question. CORRECT.

e) We cannor exactly say that if another researcher did a similar study with a sample of 1258 senior citizens they would get the same percentage (62%) because the sample is the same size. INCORRECT.