Function Exercise 2: A Simple Function Naming Functions and Variables Worksheet and VBA Functions Exercise 3: When Things Go Wrong Programming Structures Exercise 4: The IF Structure Exercise 5: Boolean Operators Exercise 6: The SELECT Structure
viii A Guide to Microsoft Excel 2002 for Scientists and...
, Systematic, Cluster and Two-stage sampling.
5. SamplingDistributions –
Samplingdistributions of sample mean when the population standard deviation is known and unknown – samplingdistribution of sample proportion
6. Estimation –
a. Point estimation – concepts of unbiased and...
Frequency distributions include percentage and cumulative percentage columns.
Kruskal-Wallis Rank Test Worksheet redesigned to accommodate larger number of groups.
New statistical procedures in version 2.5:
Levene's Test. Performs the Levene's Test for homogeneity of variance.
Changes in version...
Types of Data and Sampling
1. Terms
1.1 A population (universe) is the collection of things under consideration
1.2 A sample is a portion of the population selected for analysis
1.3 A parameter is a summary measure computed to describe a characteristic of the...
some instances you may want to generalise back to the whole population or you may be concerned with only a specific case and not generalising beyond this.
* Probability Sampling
The group to which you wish to generalise your results is known as the population in your study. In a study of...
. To select the study area is very important for successful
completion. The Data collected from the above mentioned areas a survey population was
conducted.
2.4 Sampling design and Sampling unit
It is really important to know the sampling frame and sampling technique involve for
statistical...
hypothesis whilst the t-test assessed whether the mean of two gender groups were statistically different from each other. The mean age of the children was 11.7 ± 0.3 years with a gender distribution of 51.4% females and 48.6 males, consistent to that of the general population. Of the sample 63.4% of the...
for using Excel (in addition to instructions in SSK) include:
Selvanathan and Selvanathan, Learning Statistics and Excel in Tandem Berk and Carey, Data Analaysis with Microsoft Excel (updated for Office 2007)
ECON10005 Sampling, Presenting and Spotting Swindling Lecture 1 - Slide 4
4...
your company which usually demonstrates use of your Cola products. (If a list cannot be obtained then other sampling techniques need to be used, we will discuss these later).
To illustrate how a random sample is taken, let us use N=20 and n=5, and use EXCEL. Please open your EXCELworksheet...
which the true value for a population can reasonably be assumed to lie.
From the purist point of view calculating the samplingdistribution would be achieved by taking many, many samples from the identified larger population and calculate the mean for each sample drawn. This distribution is known as...
the formula z ϭ (X Ϫ m)͞s.
A normal distribution can also be used to describe a samplingdistribution of sample
means. These samples must be of the same size and randomly selected with replacement
from the population. The means of the samples will differ somewhat from the population
mean, since...
touched when researched.
• Simple Random Sampling
• Systematic Random Sampling
• Stratified Random Sampling
• Cluster Sampling “Simple random sampling is the most widely used method. With this type of sampling, each member of the population has the same chance of being selected to be a...
density or population size. A simple type of population estimation is the Lincoln-Peterson method. This method uses two sampling events. During the first sampling period, the investigator captures organisms and gives each an identifying mark. The organisms are then released back into their habitat...
the workbooks (saving first) and exits Excel Shift + F4 Alt + F8 Displays the Macro dialog box Alt + F11 Toggles between the Visual Basic Editor window (in which one can create a macro using VBA) and the Excel window Alt + Ctrl + F9 Calculates all worksheets in all open workbooks Alt + Shift + F1...
Technology practice worksheet for Chapter 6 Problem Set Set #9 6.37 – 6.61 (odd), 6.74, 6.89, 6.93, 6.94, 6.97, 6.98( Due April 11) Test 6 ( Chapter 6) Chapter 7 SamplingDistribution of The Sample Mean Section 7.1 -7.2 Chapter 7 SamplingDistribution of The Sample Mean Section 7.3 & Chapter Review...
our data, oversampling enables us to understand the behavior of the rare cases. This might not be the case if we were to perform traditional sampling. Oversampling balances the population as shown in Figure 4.
Figure 4: Oversampling an under-represented customer segment
Generate a Model...
Distributions |appreciation for the proper application of sampling |Chapter 7: Sampling and SamplingDistributions |
|Statistics |Outline: |techniques and an understanding of the sampling...
to sample. The Rule for
Sample Means tells us that in two common situations, a normal curve approximates the samplingdistribution of the sample mean. The SampleMeans applet
lets us see the pattern that emerges when we look at the means of many different random samples from the same population...
variance
Sample Variance
Population Variance
Excel Function: Variance = VAR
Standard Deviation = STDEV
Mean Absolute Deviation
Covariance
Correlation
Excel Function: =CORREL
Chapter 4: Probability and Probability Distributions
Conditional probability...