ONE-WAY ANOVA
STATISTICS PROJECT 2
I, Venkat Sai Akhil Goud Ananthula did not give or receive any assistance
on this
project, and the report submitted is wholly my own.
Venkat Sai Akhil Goud Ananthula
1001260081
1
TABLE OF CONTENTS:
Executive Summary
2
As
Statistics- Chapter 1
Section 1.1- Introduction
-Organizing, collecting and summarizing data
Variables- characteristics of individuals in a population or sample
o Data- list of observations of variable
EX: Variable is favorite social media, Student 1 sa
Statistics- Chapter 2
Section 2.1- Organizing Qualitative Data
Frequency distribution- lists each category of data and number of
occurrences for each.
Relative frequency- proportion (%) of observations within category
o Frequency / sum of all frequencie
Business Statistics 3321
Probability 1
Kay-Yut Chen
What is Probability?
Probability
Chance
Odds
Simple Example
What is the probability of Head in a coin
flip?
or
50-50
What does it mean?
Probability
A way to measure what we do NOT know
The outcome
Business Statistics 3321
Continuous Distribution
Kay-Yut Chen
Two Types of Random Variable
Discrete Random Variable
one that takes on a countable number of values
E.g. values on the roll of dice: 2, 3, 4, , 12
[normally count type data]
Continuous Rando
If you need assistance using Excel, you can access a tutorial that is appropriate for your expe
Access these tutorials at Atomic Learning using your SNHU login at:
The Data Analysis ToolPak is an add-in program for Microsoft Excel. It must be added in to
BSTAT 3321
Alexandra Williams
BSTAT 3321: Business Statistics I
Spring 2015
Assignment #8
Due 5/7
1. Calculate probabilities from the following frequency table. (2 points each)
A1
B1
B2
B3
Total
Exercises:
A2
14
39
0
53
A3
26
26
5
57
A4
13
4
65
82
Total
3
STATS 3321
Alexandra Williams
BSTAT 3321: Business Statistics I
Spring 2015
Assignment #7
The president of a company is concerned about the cost of repairing manufacturing machinery due to
old age of the machines. The company gathered data about last mont
STATS 3321
Alexandra Williams
BSTAT 3321: Business Statistics I
Spring 2015
Assignment #6
Due 4/7
1. Identify, in the following scenario of non-statistical application of hypothesis testing, the null
hypotheses, alternative hypothesis, type I error and ty
BSTAT 3321
David Nguyen
1. Define the following:
a. Point estimator: using a single value or point.
b. Interval estimator: draws inferences about a population by estimating the value of
an unknown parameter using an interval.
c. Unbiasedness: its expected
BSTAT 3321: Business Statistics I
Spring 2014
Assignment #4
3/17
Instructions:
Write the answers on 8x11 paper, take an image file or write the answers in a Word file
You may use Excel for any calculations.
You may use Excel for any graphing. Attach a pri
STATS 3321
Alexandra Williams
BSTAT 3321: Business Statistics I
Assignment #3
Due 2/19
1. A random variable X has the following density function
f(x) = 1 0.5 x
a)
b)
c)
d)
e)
0<x<2
Graph the density function
Verify that f(x) is a density function
Find P(X
BSTAT 3321
Alexandra Williams
Assignment #1
1. a). Population: A population is often a very large group including all items of
interest. Example: Everyone who watches the superbowl but doesnt always
see all of the commercials.
2.
b). Sample: A sample is a
Import the lab08_monogammo.csv file into RStudio and answer the following questions
(include any R code you used):
1. What proportion of patients presenting subsequent malignancies also showed low
albumin levels?
> alb_table <- table(mono$Malig, mono$Albu
For each problem below, answer the following 1. State the Ho 2. State the H1 3. Find the critical value 4. Determine the test statistic. Explain 5. State the decision rule 6. Show the decision rule graphically 7. Determine the computed value of the test s