The empirical rule - Study guides, Class notes & Summaries
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MATH 225N Understanding the Empirical Rule: Week 5 (summer 2020) complete answers solution guide.
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A random sample of CO2 levels in a school has a sample mean of x¯=598.4 ppm and 
sample standard deviation of s=86.7 ppm. Use the Empirical Rule to determine the 
approximate percentage of CO2 levels that lie between 338.3 and 858.5 ppm. 
Round your answer to the nearest tenth. 
Suppose that a random sample of redwood trees has a sample mean diameter of x¯=24.1 
feet, with a sample standard deviation of s=3.7 feet. Since the diameters of redwood trees are 
generally symmetric and bell-shaped, ...
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MT LAWS P1 TOPICS EXAM – Questions & Answers (Graded A+)
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MT LAWS P1 TOPICS EXAM – Questions & Answers (Graded A+) 
MT LAWS P1 TOPICS EXAM – Questions & Answers (Graded A+) 
 
Republic Act 7722 - Higher Education Act of 1994 - ANSWER - AN ACT CREATING THE COMMISSION ON HIGHER EDUCATION, APPROPRIATING FUNDS THEREFOR AND FOR OTHER PURPOSES 
 
Law - ANSWER - any rule of action or any system of uniformity 
 
Law in general - ANSWER - determines not only the activities of men as rational beings but also the movements or motions of all objects of creatio...
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WPC 300 Midterm 1 Latest 2024 Graded A+
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WPC 300 Midterm 1 Latest 2024 
 
Graded A+ 
 
Heuristic Learns by acting, uses trial and error, values experiences, relies on common sense, 
seeks satisfying solutions 
 
Analytic Learns by analyzing, uses step by step procedure, values quantitative and models, 
builds mathematical models, seeks optimal solution 
 
Data extraction Extract data from primary/secondary source 
 
Data transformation Transform/clean data into proper format or structure for the purpose of 
querying and analysis 
 
Dat...
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BUS 302L – Statistics Questions and Answer | Latest Update 2024/2025
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Which is the following is correct? 
a. The probability of a type I error is β. 
b. The probability of a type II error is (1 - β). 
c. The probability of a type II error is α. 
d. The probability of a type I error is (1 - α). 
e. none of the above 
 ~~> e. none of the above 
A manufacturer of contact lenses is studying the curvature of the lenses it 
sells. In particular, the last 500 
lenses sold had an average curvature of 0.5. The population is 
2 | P a g e | © copyright 2024/2025 | G...
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WGU C995 Exam Questions & Answers Accurate 100%
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quantitative data - Answer Quantitative data consists of data values that are numbers, representing quantities that can be counted or measured. 
 
The Empirical Rule - Answer According to The Empirical Rule, approximately 68% of the data points in a dataset will be within 1 standard deviation of the mean. 95% of all values are within 2 standard deviations of the mean. 
 
Normal distribution - Answer In a normal distribution data is symmetrical, so the mean, median, and mode are all equal. 
 
mea...
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STA 2381- Statistics Exam | Questions with Correct Verified Answers
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T/F: Every estimator has a sampling distribution that is identical to the distribution of the 
population of interest - ANSWER False 
T/F: Chebychev's Theorem is used to help understand the concept of a standard deviation and 
applies to any random variable - ANSWER True 
T/F: The empirical rule is used to help understand the concept of the location of a population 
and applies only to symmetric unimodal continuous random variables - ANSWER False
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Straighterline Business Stats Questions and Answers 100% Pass
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Straighterline Business Stats Questions 
 
and Answers 100% Pass 
 
A marketing class of 50 students evaluated the instructor using the following scale: superior, 
good, average, poor, and inferior. The descriptive summary showed the following survey results: 
2% superior, 8% good, 45% average, 45% poor, and 0% inferior. Most students rated the 
instructor as poor or average. 
 
The general process of gathering, organizing, summarizing, analyzing, and interpreting data is 
called ____________. S...
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Math 202 : Probability and Statistics Final Test Prep, Probability and Statistics Final Test Prep | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass
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Math 202 : Probability and 
Statistics Final Test Prep, 
Probability and Statistics Final 
Test Prep | Questions and 
Correct Answers | Latest 
Update 2024/2025 | 100% Pass 
Statistical Significance 
When your discovered p-value is less than your alpha (.05 if not given). 
States that chance alone would rarely produce an equally extreme 
result. 
Non-Response Bias 
A bias caused by a number of people who did not respond to the 
survey. 
p-ValueThe probability of getting a result at least as extr...
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PSYC 2301: Exam 1 Review Questions & Answers(GRADED A+)
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Kinds of Information - ANSWERBelief vs Knowledge: 
- Belief -- propositions unsupported by facts 
- Knowledge -- propositions supported by facts 
Opinion vs fact: 
- Opinion -- inherently involves interpretation 
- Facts -- involves an objective, real observation 
 
Sources of Information: Intuition - ANSWERIntuition is a source of belief, not information 
- Sometimes involves a hard-to-track-down source of a feeling 
- Sometimes involves anecdote 
- Sometimes involves a mistaken analogy ...
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WGU C215 Operations Management PVDC Final EXAM Questions With Correct Solutions All Verified By An Expert A+ Graded
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Which definition is used for quality, evaluates how well a product performs its intended function? - ANS Fitness for use 
 
14 points for quality improvement - ANS Which total quality management (TQM) process was developed to stress management's responsibility for quality? 
 
ISO 9000 - ANS Set of international standards on quality management and quality assurance, critical to international business 
-TQM process consists of 13 published standards and guidelines 
-Like when joint commissi...
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