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*Sample*** sizes** and confidence
intervals for proportions
Chong Chun Wie
Ext: 2768
ChongChunWie@imu.edu.my
Content
• Sampling distribution of

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PROBABILITY AND STATISTICS
Lab, Seminar, Lecture 4.
Behavior of the ** sample** average
X-bar
The topic of 4th seminar&lab is the average of the
population that has a certain characteristic. This average is the population parameter of interest, denoted by the greek letter mu. We estimate this parameter with the statistic x-bar, the average in the

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HW #4 Name:
1. What is the difference between [pic] and[pic]? Between s and[pic]? (10 points)
2. Explain the difference between [pic] and [pic] and between [pic] and[pic]? (10 points)
3. Suppose that a random ** sample** of

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Running head: MULTIPLE ** SAMPLE** HYPOTHESIS TESTING
Multiple

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DESCRIPTIVE STATISTICS & REGRESSION
1. In general, a …………… is a number describing some aspect of a population. a. ** Sample**. b. Parameter. c. Inference. d. Correction factor. 2. a. b. c. d. A

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Practical 16: estimating Population ** Size** Using Mark and Recapture Method
Raw and Processed Data
Table 1: Uncertainties of apparatus used in the experiment.
Apparatus | Uncertainties |
Stopwatch | ±0.01s |
Table 2: Formulae and

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Results of Survey ( Bakeries and Pastry Shops)
*Sample*** size**: 12
Question # Answers Number of Respondents
1 . How often do you order sacks of flour?
Daily 5
Weekly 7
Monthly 0
2. How many sacks of flour do you order per delivery?
2 sacks 2
3 sacks 2
4 sacks 7
5 to 10 sacks 1
3. How many sacks do you consume per delivery?
2 sacks 2
3 sacks 2
4 sacks 7
5 to 10 sacks 1
4. Are there instances that you ran out of sacks of flour?
Yes 10
No 2
5. How often does...

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Hypothesis Testing: Two-** Sample** Case for the Mean
Many cases in the social sciences involve a hypothesis about the difference between two groups (i.e. men and women, control and experiment). We analyze statistics from two

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One ** Sample** Hypothesis Testing
I am working on a problem in Excel but I am having trouble with my T- Distribution. I am using the TDIST function but have been unsucessful in my calculations.
Here is the case scenario:
One hundred customers at the Mall of Elbonia (MoE) were given a brief interview as they concluded their shopping trips. Examine the resulting data in the Mall of Elbonia Interview Results file. For each customer (by row), the spreadsheet contains data on:
The customer's...

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Calculating *Sample*** Size**
Types of

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