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STATISTICS PROBLEM SOLVING
Statistics Problem Solving
Statistics Problem Solving
Introduction
Regression analysis uses a mathematical equation to describe this kind of relationship. In linear regression the equation describes the straight line which, on the average, provides the closest "fit" to all the points at once. There is only one such line and it ...
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SAMPLING DISTRIBUTION
Population and Sampling Distribution
Population and Sampling Distribution
Question 1 A: For a normal distribution that has a mean of 100 and a standard deviation of 8. Determine the Z-score for each of the following X values:
X = 108
X = 112
X = 98
X = 70
X = 124
(A)
Z = ...
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DESCRIPTIVE STATISTICS
Descriptive Statistics
Descriptive Statistics
Introduction
The obesity is a chronic disease caused by many reasons and with many complications, is characterized by excess fat in the body and occurs when the body mass index in adults is greater than 25 units. Worldwide the number of people with excess body weight (obesity) ...
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DESCRIPTIVE STATISTICS
Descriptive Statistics
Assignment 5b - Descriptive Statistics
Introduction
The National Hemophilia Foundation is dedicated to finding better treatments and cures for blood disorders, also prevents other complications of coagulopathy, through education, advocacy and research. The versatility of tasks requires an integrated approach to solving them. We believe that only joint ...
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Econometrics coursework
Econometrics Coursework
Econometrics Coursework
Question 1
P [ - 1.96 SE () = = + 1.96 SE ()] = 0.95
i.e. [3.24 - 1.96(1.634) = = + 1.96 (1.634)]
= [0.037= = 6.442]
Above is the 95% confidence interval for .
The null hypothesis will be rejected, since the 95% confidence interval ...
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Exchange Rates and Macroeconomic Variables
Exchange Rates and Macroeconomic Variables
Exchange Rates and Macroeconomic Variables
Introduction
The exchange rate is a rate of exchanging money between the two countries having different currencies. It is also known as the standing value of the country's currency in comparison with the other country's currency. Today, the international ...
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Runnign head: HOURS OF EXERCISE A WEEK
Hours of Exercise A Week
Hours of Exercise a Week
Introduction
Significance of Problem
The study is related to the hours of exercise a week, the purpose of this study is to know the differences in hours of exercise between the male and female.
Research Questions
- Do male and ...
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ASSIGNMENT 2
Collecting and using Business Data
Collecting and using Business Data
Introduction
The chi-square test is a nonparametric test of the statistical significance of a relation between two nominal or ordinal variables. Because a chi-square analyzes grosser data than do parametric tests such as t tests and analyses of variance (ANOVAs), ...
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CASE ASSIGNMENT FOR BASIC STATISTICS
Case Assignment for Basic Statistics
Case Assignment for Basic Statistics
Question 1
CD Player Prices in $
N
X
X2
1
298
88804
2
125
15625
3
411
168921
4
157
24649
5
231
53361
6
213
45369
7
304
92416
8
272
73984
563129
Mean =
sum of all observations
No. of observations
Mean =
(298 + 125 + 411 + 157 + 231 + 213 + 304 + 272)
8
Mean =
2011
8
Mean =
$ 251.38
Square of Mean =
(251.38)2
Square of ...
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STATS MIDTERM
Stats Midterm
Stats Midterm
1. In the following situation identify the implied population.
A recent report on the weekly news presented the findings of a study on the effectiveness of Onglyza, along with diet and exercise, for treating diabetes.
In the given situation the implied population is ratio of people having ...