Sampling and Types of Studies in Statistics
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Problems 21
- Is it usually possible to be able to know the population parameter's true value?
- "A 4th grade teacher wants to know what percentage of 4th graders take naps daily. The teacher asks her class of 25 students to check yes or no on a survey sheet as to whether o…
- If you conduct a research study/survey on a very small group, would you likely end up with a population parameter or a sample statistic? (Assume sample statistic cannot equal po…
- If you conduct a research study/survey on a very large group, would you likely end up with a population parameter or a sample statistic? (Assume sample statistic cannot equal po…
- "A researcher wants to know what percentage of bike workers at Bike Industry, a huge bike factory with 5,000 employees. were paid less than 20,000 dollars per year. 33% of a ran…
- You want to know how many hours of sleep your 20 friends get on average per night. Is the mean value of hours of sleep likely a parameter or estimate/statistic?
- True or False\text{True or False}True or False === The difference between a statistic and a parameter is that statistics describe a sample, while a parameter describes an entire…
- True or False\text{True or False}True or False === The difference between a statistic and a parameter is that statistics describe an entire population while a parameter describe…
- You want to know how many cups of water you will drink on average per day this year so you record how many cups you drank on every monday and thursday this year. Is the mean val…
- "A successful company owner wants to know what percentage of their employees eat at least one of the offered amenities (free food or drink) daily. The owner asks 200 out of thei…
- In the above scenario, what is the sample estimate and what is the population parameter?
- If you conduct a research study/survey on a very small group, would you likely end up with a population parameter or a sample statistic? (Assume sample statistic cannot equal po…
- You want to know the average rainfall in inches in the Amazon Rainforest. Are you likely to find a sample estimate/statistic or a population parameter?
- As an instructor you want to know what percentage of your class got A's and B's on the last test. All the grade records are kept in a convenient online database. Are you likely …
- True or False\text{True or False}True or False === A parameter is more accurate than a statistic.
- True or False\text{True or False}True or False === A statistic is more accurate than a parameter.
- You want to know the average radius of your marble collection. Note: You have 5 marbles in your marble collection. Are you likely to find a sample estimate/statistic or a popula…
- True or False\text{True or False}True or False === A statistic is basically the same as an estimate.
- True or False\text{True or False}True or False === You can find the true value of interest or population parameter without collecting data on every member of the population.
- True or False\text{True or False}True or False === You get a statistic from collecting data from a sample of the population.
- True or False\text{True or False}True or False === The difference between a statistic and a parameter is that statistics describes an entire population.