1. To estimate the number of young female smokers in Canada, researchers randoml
ID: 2947952 • Letter: 1
Question
1. To estimate the number of young female smokers in Canada, researchers randomly select 10 schools from all schools in a certain province. If a school is selected, all female students in that school are surveyed. What sampling technique is used?
A) Cluster Sampling
B) Stratified Random Sampling
C) Convenience Sampling
D) Simple Random Sampling
2. Imagine a hypothesis test in the context of a pregnancy test. Assume the null hypothesis is that the woman is NOT pregnant. Which of the following correctly describes a type II error in this example?
A) The pregnancy test says the woman is not pregnant when in fact she is not.
B) The pregnancy test says the woman is pregnant when in fact she is not
C) The pregnancy test says the woman is pregnant when in fact she is
D) The pregnancy test says the woman is not pregnant when in fact she is
A) The pregnancy test says the woman is not pregnant when in fact she is not.
B) The pregnancy test says the woman is pregnant when in fact she is not
C) The pregnancy test says the woman is pregnant when in fact she is
D) The pregnancy test says the woman is not pregnant when in fact she is
Explanation / Answer
1. Cluster sampling is being used. Option A is correct.
2. Type II error: The pregnancy test says the woman is not pregnant when in fact she is. Option D is correct.
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