Exam (elaborations)
Business Stats Final: Straighterline Exam/Questions with Verified answers
- Course
- Institution
Business Stats Final: Straighterline Exam/Questions with Verified answers
[Show more]
Content preview
Business Stats Final: StraighterlineExam/Questions with Verified
answers
Which of the following is a qualitative variable type? - - Discrete
Continuous
Both of the above
# None of the above
- What would be an example of a quantitative variable? - - The net pay on
your paycheck
The temperature outside
Your weight
# All of the above
- What is the highest level of measurement for a variable? - - Ratio
- Your compensation has increased steadily in the last few years. At the
same time, the number of homeless people in the United States has also
increased. What is this an example of? - - Association
- A sampling technique where an item can be chosen only once from a
population is called - - Sampling without replacement.
- A sampling technique where every nth item in the population is tested is
called? - - Systematic Random Sampling
- If you increase your sample size, you.. - - Eliminate all possibility of a
sample error
Increase the likelihood of a sample error
Do not affect the likelihood of a sample error
None of the above Correct
Ans: You decrease the likelihood of sample error.
, - When selecting a sample, if you intentionally select sample items that will
give you a desired result, what would you have? - - A biased sample.
- The central limit theorem states that the sampling distribution of a sample
mean approximates - - A normal distribution.
- If you sum the difference between each observation and the mean, the
sum equals - - zero
- An outlier is a data value that is - - Much bigger or smaller than the other
observation values.
- What is the square root of the variance? - - The standard deviation
- What is a measure used to analyze the dispersion of the data? - - Range
Standard deviation
Variance
Ans: All of the above
- Which descriptive statistics can Excel compute? - - Mean and Median
- The observation value that occurs most often in the sample is called the
_____. - - The Mode
- According to the empirical rule, approximately what percent of the data is
within two standard deviations plus and minus from the mean? - - 95%
- What does a histogram display? - - Frequency Distribution
- If you are in the 90th percentile in your class, what percent of the students
are below your rank? - - 90%
- Using Pearson's coefficient of skewness, what does a value of 2.5 indicate?
- - A strong positive skew
- What is a graph that depicts data as dots called? - - A dot-plot
- What is a graph that is used to depict quartile data and has "whiskers"
called? - - A box plot
- What is a "stem and leaf" also known as? - - A stem plot
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Nursephil2023. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75759 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now