Question

2.16 according to a​ study, the proportion of people who are satisfied with the way things are going in their lives is 0.72 . suppose that a random sample of 100 people is obtained. complete parts​ (a) through​ (e) below. click here to view the standard normal distribution table (page 1). loading... click here to view the standard normal distribution table (page 2). loading... ​(a) suppose the random sample of 100 people is​ asked, "are you satisfied with the way things are going in your​ life?" is the response to this question qualitative or​ quantitative? explain.
a. the response is qualitative because the responses can be measured numerically and the values added or​ subtracted, providing meaningful results.
b. the response is qualitative because the responses can be classified based on the characteristic of being satisfied or not. your answer is correct.
c. the response is quantitative because the responses can be classified based on the characteristic of being satisfied or not.
d. the response is quantitative because the responses can be measured numerically and the values added or​ subtracted, providing meaningful results. ​(b) explain why the sample​ proportion, modifyingabove p with caret ​, is a random variable. what is the source of the​ variability?
a. the sample proportion modifyingabove p with caret is a random variable because the value of modifyingabove p with caret represents a random person included in the sample. the variability is due to the fact that people may not be responding to the question truthfully.
b. the sample proportion modifyingabove p with caret is a random variable because the value of modifyingabove p with caret represents a random person included in the sample. the variability is due to the fact that different people feel differently regarding their satisfaction.
c. the sample proportion modifyingabove p with caret is a random variable because the value of modifyingabove p with caret varies from sample to sample. the variability is due to the fact that different people feel differently regarding their satisfaction.
d. the sample proportion modifyingabove p with caret is a random variable because the value of modifyingabove p with caret varies from sample to sample. the variability is due to the fact that people may not be responding to the question truthfully.

Answer 1

Part A)
The answer is b) this is qualitative because the responses are about whether people are satisfied or not, instead of something numeric.
Part B)
The answer is b) this is random because it represents a different person in the sample, and it is variable because people feel differently about their situations.