Situations comparing two proportions are described. In each case, determine whether the situation involves comparing proportions for two groups or comparing two proportions from the same group (1 point each)
a. Compare the proportion of U.S. adults who have a positive opinion about the media versus those who have a negative opinion about the media.
A) Comparing proportions for two groups
B) Comparing two proportions from the same group
b. Compare the proportion of female students at a university who live in a dorm to the proportion of male students at a university who live in a dorm
A) Comparing proportions for two groups
B) Comparing two proportions from the same group
Situations comparing two proportions are described. In each case, determine whether the situation involves
Burhan Hopper
2021-01-27
Answered
You can still ask an expert for help
Expert Answer
2abehn
Answered 2021-01-28
Author has 88 answers
a) here option B is correct. See here we are interested in the proportion of US adults who have positive opinion about media. So here, there is only one group, that is the group of US adults. In this group we are interested in knowing the proportion of individuals who have positive opinion about media. So option B is correct and A is wrong.
b) Here option A is correct. Here we have two group of inviduals: Group 1. Female students of the university. Group 2. Male students of the university. From both the groups we are calculating the proportion of individuals who live in a dorm and then comparing between them. Hence option A is correct and B is wrong.
Not exactly what you’re looking for?
This is helpful
Relevant Questions
asked 2020-11-01
Solve the following problems applying Polya’s Four-Step Problem-Solving strategy.
If six people greet each other at a meeting by shaking hands with one another, how many handshakes take place?
If six people greet each other at a meeting by shaking hands with one another, how many handshakes take place?
asked 2021-03-02
In how many ways can 7 graduate students be assigned to 1 triple and 2 double hotel rooms during a conference
asked 2021-01-22
TWO GROUPS OR ONE?
Situations comparing two proportions are described. In each case, determine whether the situation involves comparing proportions for two groups or comparing two proportions from the same group. State whether the methods of this section apply to the difference in proportions.
(c) Compare the graduation rate (proportion to graduate) of students on an athletic scholarship to the graduation rate of students who are not on an athletic scholarship. This situation involves comparing: 1 group or 2 groups? Do the methods of this section apply to the difference in proportions? Yes or No
asked 2021-10-23
A researcher has a hypothesis that a specific drug may have a higher prevalence of side effects among members of the African American population than members of the Caucasian population. Which statistical technique might the researcher want to use when designing a study to test their hypothesis?
Randomization
Crossover matching
Matching
Stratification
Randomization
Crossover matching
Matching
Stratification
asked 2021-10-08
An instructor wants to find out whether modality of instruction affects students
asked 2021-10-12
Define degrees of freedom in the context of t-tests.
The t test is used to check if the averages of two groups are statistically different from each other or not. Moreover, the significant difference between the two groups can be analysed using t test. It is used the sample size is small and population variances are unknown and the populations are normally distributed.
The t test is used to check if the averages of two groups are statistically different from each other or not. Moreover, the significant difference between the two groups can be analysed using t test. It is used the sample size is small and population variances are unknown and the populations are normally distributed.
asked 2021-01-30
The standard deviation of daily iron intake in the larger population of 9-to 11-year-old boys was 5.56 mg. We want to test whether the standard deviation from the low-income group is comparable to that of the general population
