1 - 10 of 500

chapter 1: STATS – STATISTICS DATA AND ** STATISTICAL** THINKING
1.1 The science of statistics
* Statistics - is the science of data. It involves collecting, classifying, summarising, organising, analysing, and interpreting numerical information.
1.2 types of

Premium Level of measurement, Scientific method, Statistical inference 962 Words | 4 Pages

Open Document
1
Some key points and concepts mentioned in class and solved by both online
and face-to-face students
Chapter 8: *Statistical*** Inference**: Estimation for Single Populations
Confidence Intervals Notes
* There will be no questions on the exam regarding the “proportion” of a
population
In optional Section 7.5 we concluded this chapter by comparing confidence
intervals for μ with tolerance intervals. We emphasized that a tolerance interval is
meant to contain a specified percentage of the...

Premium Normal distribution, Confidence interval, Prediction interval 365 Words | 3 Pages

Open Document
point estimate for the population mean? A) 2.1 years B) 1.5 years C) 19.1 years D) 9 years Answer: C 82. What is the 95% confidence interval for the population mean? A) [0.97, 3.27] B) [15.64, 22.56] C) [17.97, 20.23] D) [17.95, 20.25] Answer: D
** Statistical** Techniques in Business & Economics, Lind/Marchal/Wathen, 13/e
137
83. What is the 99% confidence interval for the population mean? A) [17.42, 20.78] B) [17.48, 20.72] C) [14.23, 23.98] D) [0.44, 3.80] Answer: A Use the following to answer...

Premium Arithmetic mean, Normal distribution, Standard deviation 711 Words | 3 Pages

Open Document
in an Urban area in the U.S.
• The standard error, also referred to as s, is the idea of the scattered of the actual points around the regression line.
• The adjusted multiple coefficient of determination, also referred to as Adjusted R².
• ** Inferences** to test the hypothesis and confidence intervals, the overall F-test, and the prediction of the dependent variable
• Investigate the multicollinearity by examining if there are correlations among the independent variables that are so high that they...

Premium Theft, Errors and residuals in statistics, Linear regression 1476 Words | 6 Pages

Open Document
Inferential Statistics
Making statements about a population by
examining sample results
Sample statistics
(known)
Population parameters
** Inference**
(unknown, but can be estimated
from sample evidence
Sample
Population
Sample Statistics as Estimators of
Population Parameters
A sample statistic is a
numerical measure of a
summary characteristic of a
sample.
•
•
•
A population parameter is
a numerical measure of a
summary characteristic of a
population.
An estimator...

Premium Confidence interval, Arithmetic mean, Statistical inference 1037 Words | 5 Pages

Open Document
chain of custody, there is another process known as the chain of ** Inference** which is also referred as concatenate

Premium Sherlock Holmes, Computer forensics, Scientific method 1026 Words | 4 Pages

Open Document
appreciation for the breadth of ** statistical** applications in business and economics.
2. Understand the meaning of the terms elements, variables, and observations as they are used in statistics.
3. Obtain an understanding of the difference between categorical, quantitative, crossectional and time series data.
4. Learn about the sources of data for

Premium Data, Gross profit margin, Level of measurement 1747 Words | 7 Pages

Open Document
is the science of making sound decisions in spite of uncertainty, and it may be applied to fields ranging from econometrics and financial analysis to auditing and market research. ** Statistical** techniques play a significant role in business applications. Factors such as randomness, sample size, and

Premium Scientific method, Mathematics, Measurement 532 Words | 3 Pages

Open Document
Construct the 95% confidence interval for the population mean.
A. (61.9, 64.9)
B. (58.1, 67.3)
C. (59.7, 66.5)
D. (60.8, 65.4)
3. Suppose a 95% confidence interval for µ turns out to be (120, 310). To make more useful ** inferences** from the data, it is desired to reduce the width of the confidence interval. Which of the following will result in a reduced interval width?
A. Increase the sample size.
B. Decrease the confidence level.
C. Increase the sample...

Premium Confidence interval, Sample size, Statistical inference 973 Words | 4 Pages

Open Document
draw conclusions about true population parameters is called
a) *statistical*** inference**.
b) the scientific method.
c) sampling.
d) descriptive statistics.
ANSWER:
a
TYPE: MC DIFFICULTY: Easy
KEYWORDS: inferential statistics
2. Those methods involving the collection, presentation, and characterization of a set of data in order to properly describe the various features of that set of data are called
a)

Premium Pine, Sample, Arithmetic mean 1481 Words | 6 Pages

Open Document