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![STATISTICS QUESTIONS & ANSWERS](/docpics/5684768/66749eafc0935_5684768_121_171.jpeg)
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STATISTICS QUESTIONS & ANSWERS
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STATISTICS QUESTIONS & ANSWERS 
a block is a group of subjects that are similar, but blocks differ in ways that might affect the 
outcome of the experiment. - ANSWER: Randomized block design 
a numerical measurement describing some characteristic of a population - ANSWER: parameter 
a numerical measurement describing some characteristic of a sample - ANSWER: statistic 
A sample of n subjects is selected in such a way that every possible sample of the same size n has 
the same chance of being cho...
![Statistics Chapter 1 Questions & Answers](/docpics/5684755/66749e7155aad_5684755_121_171.jpeg)
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Statistics Chapter 1 Questions & Answers
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Statistics Chapter 1 Questions & Answers 
Advantages of bar graph when compared to a pie chart - ANSWER: Both graphs can display the 
distribution of a categorical variable, but a bar graph can also compare any set of quantities that 
are measured in the same units. 
Are quartiles/IQR resistant? - ANSWER: Yes because they are not affected by a few extreme 
observations 
Association - ANSWER: There is an association b/w 2 variables if specific values of one 
variable tend to occur in common with ...
![Statistics Symbols Questions & Answers](/docpics/5684744/66749df8bd5c5_5684744_121_171.jpeg)
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Statistics Symbols Questions & Answers
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Statistics Symbols Questions & Answers 
1 - ANSWER: CDF of a Poisson— it will never equal __, it will only approach it (doesn't have a 
stopping point) 
1 - F(a) - ANSWER: P(X greater than or equal to a) 
1. "Is it counting a # of successes?" 
2. "Do I have a finite Bernoulli Process?" 
i. "are there a finite # of trials?" 
ii. "do I have only 2 outcomes?" 
iii. "is there constant probability?" 
iv. "are the trials independent?" - ANSWER: how to determine if your distribution is b...
![Statistics Chapter 9 Questions & Answers](/docpics/5684732/66749dbe8f570_5684732_121_171.jpeg)
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Statistics Chapter 9 Questions & Answers
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Statistics Chapter 9 Questions & Answers 
A 95% confidence interval for the ages of six consecutive presidents at their inaugurations is 
about (48.4, 54.2). Either interpret the interval or explain why it should not be interpreted. - 
ANSWER: It should not be interpreted. The data are not a random sample and so inference 
based on a confidence interval is not possible. 
A 95% confidence interval is equivalent to which of the following hypothesis tests? - ANSWER: 
A two-tailed test with a signif...
![Statistics Questions & Answers](/docpics/5684722/66749d83813cc_5684722_121_171.jpeg)
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Statistics Questions & Answers
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Statistics Questions & Answers 
A group of subjects to which researchers apply a treatment in an experiment - ANSWER: 
Treatment group 
A market researcher interviews each member from each of the five randomly chosen 
neighborhoods throughout a city. - ANSWER: Cluster Sampling 
A response to the power of suggestion, rather than the treatment itself, by participants of an 
experiment - ANSWER: Placebo effect 
A study in which data are obtained from every member of the population - ANSWER: Census ...
![Statistics Questions & Answers](/docpics/5684715/66749d1442693_5684715_121_171.jpeg)
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Statistics Questions & Answers
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Statistics Questions & Answers 
A class interval, which is the width of a class, can be determined by subtracting the lower limit of 
a class from the lower limit of the next higher class. - ANSWER: 
A difference between calculating the sample mean and the population mean is - ANSWER: Only 
in the symbols, we use n instead of N. 
A disadvantage of the range is - ANSWER: Only two values are used in its calculation. 
A discrete variable is - ANSWER: Can assume only certain clearly separated values...
![Intro. to Statistics MCCC Ch. 1 Questions & Answers](/docpics/5684704/66749cd800c01_5684704_121_171.jpeg)
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Intro. to Statistics MCCC Ch. 1 Questions & Answers
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Intro. to Statistics MCCC Ch. 1 
Questions & Answers 
- is used when subjects are assigned to different groups through a process of random selection. - 
ANSWER: randomization 
A handler loads one item every 15 minutes, so 160 items are completed in her first week of work. 
Her manager checks her work by randomly selecting a day of the week, then reviewing all the 
items she completed that day. Does this a sampling plan result in a random sample? Simple 
random sample? 
Does this sampling plan re...
![Statistics Mid-term Questions & Answers](/docpics/5684656/66749ba12ac95_5684656_121_171.jpeg)
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Statistics Mid-term Questions & Answers
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Statistics Mid-term Questions & Answers 
______are the categories by which data are grouped. - ANSWER: Classes 
_____statistics consists of organizing and summarizing information collected, while 
______statistics uses methods that generalize results obtained from a sample to the population 
and measure the reliability of the results. - ANSWER: Descriptive; inferential 
(Describe what the line will look like) 
Match the coefficient of determination to the scatter diagram. The scales on the x-axi...
![Statistics Questions & Answers](/docpics/5684648/66749b6131e58_5684648_121_171.jpeg)
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Statistics Questions & Answers
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Statistics Questions & Answers 
Binomial Experiment - ANSWER: Experiment with a fixed number of trials, 2 outcomes, 
constant probability of success, and trials are independent. 
Chebysheffs Theorem - ANSWER: (1-1/K^2) of the data's values lie withink K standard 
deviations. 
Cluster Sampling - ANSWER: The members of a subset (cluster) are heterogenous; a random 
sample of clusters is taken and the members of the selected clusters constitute the sample for the 
study. 
Coefficient of Determinat...
![Statistics Final Ch. 1-3 Question & Answers](/docpics/5684631/66749af04e445_5684631_121_171.jpeg)
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Statistics Final Ch. 1-3 Question & Answers
- Exam (elaborations) • 12 pages • 2024
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Statistics Questions & Answers 
Binomial Experiment - ANSWER: Experiment with a fixed number of trials, 2 outcomes, 
constant probability of success, and trials are independent. 
Chebysheffs Theorem - ANSWER: (1-1/K^2) of the data's values lie withink K standard 
deviations. 
Cluster Sampling - ANSWER: The members of a subset (cluster) are heterogenous; a random 
sample of clusters is taken and the members of the selected clusters constitute the sample for the 
study. 
Coefficient of Determinat...
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