Question 1: Determine whether the given description to an observational study or an experiment. In a...

Question 1: Determine whether the given description to an observational study or an experiment.

In a study of 424 children with particular disease, the subjects were monitored with an EEG while asleep.

Does the given description correspond to an observational study or an experiment?

A. The given description corresponds to an experiment.

B. The given description corresponds to an observational study.

C. The given description does not provide enough information to answer this question.

Question 2: Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below.

A man is selected by a marketing company to participate in a paid focus group. The company says that the man was selected because he was randomly chosen from all men in his tax bracket.

Which type of sampling did the marketing company use?

A. Systematic sampling, B. Random Sampling, C. Convenience Sampling, D. Cluster sampling, E. Stratified sampling

Question 3: Identify which type of sampling is used: random, systematic, convenience, stratified, or cluster.

A radio station asks its listeners to call in their opinion regarding the format of the morning show.

Which type of sampling is used?

A. Cluster, B. Stratified, C. Random, D. Systematic, E. Convenience

Question 4: Identify the type of sampling used (random, systematic, convenience, stratified, or cluster sampling) in the situation described below.

A woman experienced a tax credit. The tax department claimed that the woman was audited because everyone in four randomly selected districts was being audited.

Which type of sampling did the tax department use?

A. Cluster sampling

B. Systematic Sampling

C. Convenience Sampling

D. Random Sampling

E. Stratified Sampling

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

5. Determine whether the given description corresponds to an experiment or observational study. a. A stock...

5. Determine whether the given description corresponds to an experiment or observational study. a. A stock analyst selects a stock from a group of twenty for investment by choosing the stock with the greatest earnings per share reported for the last quarter. b. A marketing firm does a survey to find out how many people use a product. Of the one hundred people contacted, fifteen said they use the product. c. A political pollster reports that his candidate has a...

1) Is the following study design an anecdote, experiment, or observational study? You'd like to investigate...

1) Is the following study design an anecdote, experiment, or observational study? You'd like to investigate if what color shirt fans wear to a game help the Le Moyne Women's Soccer team score goals? You attend every home game. You write down how many fans attended the game, what color shirt they wore, and how many goals the soccer team scored. 2) Among the 268 words in the Gettysburg Address, 99 contain at least 5 letters. Is 99/268 = .369...

In the description of the following experiment, determine the experimental factor. During a study testing a...

In the description of the following experiment, determine the experimental factor. During a study testing a new vaccine for Zika virus, the research team grouped the volunteers enrolled for the test into Group A and Group B. Group A received an inert drug (placebo) while Group B received the vaccine. Select the correct answer below: whether or not a person contracts the Zika virus the effectiveness of the new vaccine the drug received by each group the group receiving the...

1-a)What is the difference between an experiment and an observational study? b)Give an example of an...

1-a)What is the difference between an experiment and an observational study? b)Give an example of an experiment. In your example, what population are you studying? 2-a)Define the mode and median of a set of data points. b)Construct a set of 5 data points with a mode of 3. Construct a second set of 5 data points with a median of 5. Clearly indicate which set is which. 3)Construct a frequency distribution using 4 classes for the following set of 10...

#11-16. For each study described, state whether it will experimental or observational. If observational, identify which...

#11-16. For each study described, state whether it will experimental or observational. If observational, identify which type specifically (retrospective cohort, prospective cohort, case-control, cross-sectional, ecological). Briefly explain how you can tell. We plan to distribute a questionnaire to all UNLV faculty, students and staff ages 40 and 60. In that questionnaire, we will ask if they suffer from kidney disease, and if they take regular medications including BZDs. We than assess how many people with kidney disease take BZDs and...

3. Determine whether the given value is a statistic or a parameter. a. In a study,...

3. Determine whether the given value is a statistic or a parameter. a. In a study, 21% respondents said they did not vote. b. 20% of homeowner cannot pay their mortgage. c. 30% of all dog owners poop scoop after their dogs. d. 80% of students who showed up on the first day of class last semester passed the class with flying color. 4. Determine whether the given values are from a discrete or continuous data. a. Temperatures of the...

Identify the independent and dependent variable: question 1: a study was conducted to determine whether when...

Identify the independent and dependent variable: question 1: a study was conducted to determine whether when a restaurant server drew a happy face on the check, that would increase the amount of tip. question 2: a study was conducted to determine if the marital status of an individual had any effect on the cause of death of the individual. 23-26 question 3: suggest some cofounding variables that the researcher might want to consider when doing a study question 4: psychology...

In each of the following instances (i) tell whether the study is experimental or observational, (ii)...

In each of the following instances (i) tell whether the study is experimental or observational, (ii) tell whether the study is comparative or descriptive, and (iii) if the study is comparative, identify the response and explanatory variables. a) Annual rates of return on investment are compared among different groups of mutual founds. b) In a pilot phase of fund-raising campaign, a university randomly contacts half of a group of alumni by telephone and the other half by a personal letter...

Experiment or an observational, if it is an experiment, identify the independent variable and note any...

Experiment or an observational, if it is an experiment, identify the independent variable and note any possible confounding variables. A social scientist wishes to determine whether there is a relationship between the attractiveness scores (on a 100-point scale) assigned to college students by a panel of peers and their scores on a paper-and-pencil test of anxiety.

4.) Determine whether the following probability experiment is a binomial experiment. If the probability experiment is...

4.) Determine whether the following probability experiment is a binomial experiment. If the probability experiment is not a binomial experiment, state why? a.) In a town with 400 citizens, 100 randomly selected citizens are asked to identify their religion. The number who identify with a Christian religion is recorded. b.) An experiment is conducted in which a single die is cast until a 3 comes up. The number of throws required is recorded.

Subjects