Question

Canada has much stronger gun control laws than the United States, and Canadians support gun control more strongly than do Americans. A sample survey asked a random sample of 1505 adult Canadians, “Do you agree or disagree that all firearms should be registered?” Of the 1505 people in the sample, 1288 answered either “Agree strongly” or “Agree somewhat.”

QUESTION 1

a) What is the population of interest in this study?

A. all Americans B. all Canadians C. all people with guns

b) In this case, the proportion (p) of all Canadians who support registration of all firearms is :

A. 95% B. unknown C. 1288/1505

c) The sample proportion (p-hat) who support registration of all firearms is:

A. 95% B. unknown C. 1288/1505

d) The sample size (n) in the study is:

A. unknown B. 1288 C. 1505

e) Can we use the Normal distribution to construct a confidence interval for the proportion of all Canadians who support registration of all firearms? Use the rule: np-hat > 10 and n (1- p-hat) > 10 .

f) The critical value z* for a 95% confidence interval is 1.96. Construct the 95 % confidence interval for the proportion of all Canadians who support registration of all firearms.

  

Answer 1

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