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QuestionAnswer
Determine if the following is an example of descriptive or inferential statistics. A survey was done asking 300 students how old they are. A histogram was produced to display the results of the survey. Descriptive Statistics
Political pollsters may be interested in the proportion of people that will vote for a particular cause. Match the vocabulary word with its corresponding example. - The answer Yes or No to the survey question - All the voters in the district - The l variable population data parameter sample statistics
A marketing company is interested in the proportion of people that will buy a particular product. Match the vocabulary word with its corresponding example. - The answer Yes or No to whether a person bought the product - All people in the marketing com variable population data sample parameter statistics
Identify the type of data that would be used to describe a response. A Person's Ethnicity Qualitative (Catergorical)
Insurance companies are interested in the average health costs each year for their clients, so that they can determine the costs of health insurance. Match the vocabulary word with its corresponding example. - The average health care cost each year for statistics variable sample population parameter data
A bank manager is interested in the average length of time that customers are willing to wait in line before they give up and leave the bank. Match the vocabulary word with its corresponding example. - The list of times for the 25 customers who left the data statistics parameter sample population variable
Suppose you want to estimate the percentage of videos on YouTube that are cat videos. It is impossible for you to watch all videos on YouTube so you use a random video picker to select 1000 videos for you. You find that 2% of these videos are cat videos.
a) The percentage of all videos on YouTube that are cat videos is a/an: population parameter
b) 2% is a/an sample statistic
c) A video in your sample is a/an observation
d) Whether or not a video is a cat video a/an variable
In a study, the sample is chosen by randomly selecting five classes, and surveying all students in each of these five classes What is the sampling method? Simple Random Systematic Stratified Cluster Convenience cluster
In a study, the sample is chosen by surveying every 3rd driver coming through a tollbooth What is the sampling method? Simple Random Convenience Stratified Systematic Cluster Systematic
In a study, the data you collect is Habits on a Always/Sometimes/Never scale. What is the level of measurement? nominal ordinal interval ratio ordinal
Does this describe an observational study or an experiment? The temperature on randomly selected days throughout the year were measured Observational Study Experiment Observational Study
Which of the following are reasons that a sampling technique may not be scientific. Choose all that apply. People who were asked refused to answer Trying to conclude that there is a cause-and-effect relationship when something else causes both Two fa People who were asked refused to answer Trying to conclude that there is a cause-and-effect relationship when something else causes both Two factors cannot be separated to determine which is the one that is responsible for the outcome. The funders of t
Would the following method produce a random sample? Selecting a room of the house, and appraising all items in that room? NO
If the sample size is much smaller than the population size, say 20 times smaller, then random sampling with replacement and random sampling without replacement are nearly equivalent. False True TRUE
Created by: Brandi Sizemore
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