WPC 300 Quiz Questions with All Correct Answers
Which of the following is a continuous random variable? - Answer- The time to complete a specific task
The central limit theorem states that if the population is normally distributed, then the - Answer- Sampling distribution of the mean will al...
WPC 300 Quiz Questions with All
Correct Answers
Which of the following is a continuous random variable? - Answer- The time to complete
a specific task
The central limit theorem states that if the population is normally distributed, then the -
Answer- Sampling distribution of the mean will also be normal for any sample size
The WPC Sports Company has noted that the size of individual "customer order" is
normally distributed with a mean of $100 and standard deviation of $12. If a soccer
team of 16 players were to make the next batch of orders, what would be the standard
error of the mean? - Answer- 3.00 (12 (st dev) divided by 4 (sqrt of sample size)
Which of the following proposition describes an existing theory or belief? - Answer- Null
hypothesis
In order to reject the null hypothesis, the p-value must be less than the - Answer- Alpha
When sample size increases - Answer- Confidence interval decreases
You are collecting data via an online survey to improve education standard at ASU.
Which of the following methods will not result in data collection bias? - Answer-
Anonymously data collection by hiding ASU brand in the survey question.
Which is true among the following statements on visualization? - Answer- Visual data
enables the reader to see trends and dependencies.
Which of the following is true about interpretation? - Answer- None of the answers:
Interpretation only needs to be done when we have finished all our analytics tasks.
We only need to interpret our finding from a regression analysis.
We don't need to revisit our original question once we have performed an interpretation.
Which of the following statement is false with regard to interpretation? - Answer- We
cannot refine a model after interpreting its results.
William Playfair is credited for inventing which type of chart? - Answer- pie chart
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