_
BC 303: STATISTICS
HW#2
En Kelly
Chapter 3 Exercises
10 Mean = 10.7, Statistic
16 $143.75
36a 9.38% 36b 102.65
42a 6 42b 2.45
48 68% of days will be between 87.23 96.57, & 95% of days between 82.56 101.24
Chapter 4 Exercises
4 9.45 & [5.24-7.59] & [9.61
BC 303 HW #7
Chapter 12
4 The following hypothesis are given:
H 0: 1 < 2
H1: 1 > 2
A random sample of 5 observations from the first population resulted in a standard deviation of 12. A
random sample of 7 observations in the second population showed a stan
_
BC 303: STATISTICS
HW#1
En Kelly
Chapter 1
2a (Interval) 2b (Nominal) 2c (Ratio) 2d (Interval)
6. A sample is a portion / part of a population of interest, whereas a population is an entire set of
individuals or objects of interest, or the measurements
BC-303 OHW 4
p.344/26
A coffee manufacture is interested in whether the mean daily consumption of regular coffee
drinker is less than that of decaffeinated-coffee drinkers. A random sample of 50 regularcoffee drinkers showed a mean of 4.35 cups per day, w
We are looking for less than 2 defective antennas. That is 1 or 0 defective antennas in 200.
n = 200 (number of trials)
= 0.015 (probability of a success)
x = 0 or 1 (number of successes)
I will use formula:
P(x) = nCx ( )x (1-)n-x
P(0) = 200C0 (0.015)0
Exercise 2B
If you choose a sample of size 60 from the original population, what is the probability that its
mean will be between 1070 and 1130?
My solution would be to find both z values, convert them to probability using Appendix D
and then adding them
Albena Temelkova
OHW 2 Example 1b page 187/54b
Suppose 1.5 percent of the antennas on new Nokia cell phones are defective. For a
random sample of 200 antennas, find the probability that:
b. Three or more of the antennas are defective
Solution:
Binomial Di
EXAMPLE 2: Each salesperson at Stiles-Compton is rated either below average, average,
or above average with respect to sales ability. Each salesperson is also rated with respect to
his or her potential for advancement fair, good, or excellent. These trait
215/52 The price of shares of Bank of Florida at the end of trading each day for the last year followed the
normal distribution. Assume there were 240 trading days in the year. The mean price was $42.00 per
share and the standard deviation was $2.25 per s
Problem 3e (183/32): What is the probability that exactly 50
automobiles arrive during a 30-minute interval?
2 automobiles per minute arriving corresponds to 60 automobiles/30
minutes.
The probability that exactly 50 cars would arrive during a 30 minute
i
SPRING2013BC303
ResearchReport
SmokingVS.Cancer
Instructor: William Middleton
Trang Dao
5/18/2013
Abstract: This research paper purpose is to show evidences that tobacco smoking is the cause
for lung cancer of both male and female.
Smoking and Lung Cancer
Smoking VS. Lung Cancer
By: Trang Dao
Research Question
Does smoking cigarette increase the chance
of getting lung cancer in both men and
women?
Hypothesis
Smoking cigarette increases the risk of
getting lung cancer in both men and
women.
Objectives
Under
1-1
Course Overview
Tuesday Lecture Sessions
BC 303: City University of Seattle
Dr. W.A. Middleton
1-2
Research Paper Guidance
Individual Students
BC 303: City University of Seattle
Dr. W.A. Middleton
1-3
Research Paper Project - Individual
Course Grade
ResearchProgressReport
SmokingCigaretteIncreaseLungCancerRisks?
5/10/2013
Trang Dao
2
Introduction
Cancer is the worlds greatest health issue of this century. In 2008, there were an estimated of 12.7 million cancer cases around
the world, and estimated to
ResearchPlan
SmokingCigaretteIncreaseLungCancerRisks?
4/26/2013
Trang Dao
2
Introduction
Cancer is the worlds greatest health issue of this century. In 2008, there were an estimated of 12.7 million cancer cases around
the world, and estimated to be 21 mil
Smoking VS. Lung Cancer
Research Question: Does smoking cigarette increase the chance of getting lung cancer in both men and
women?
Hypothesis: Smoking cigarette increase the risk of getting lung cancer in both men and women.
Conclusion: Smoking does incr
SPRING2013BC303
ResearchReport
SmokingVS.Cancer
Instructor: William Middleton
Trang Dao
5/18/2013
Abstract: This research paper purpose is to show evidences that tobacco smoking is the cause for lung
cancer of both male and female.
Smoking and Lung Cancer
Problem 1
mean = 12h = 720 min
Deviation= 3h= 180min
95% level of confidence
error = 15min
n=
553.1904 = 554
554 People should be surveyed
Problem 2
Day
n= 54
mean=345
dev=21
Night
n=60
mean= 351
dev= 28
a) At 0.05 is number units produced in night shift
Prob 3.6
Mean=
4.417857
Prob 3.10
n
data
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Total
5
6
7
7
9
10
12
12
12
12
13
13
13
15
15
161
a) EAN=
M
10.73333
b) his is Statistic because it's characteristic of a sample of workers
T
Prob 3.16
hours
consultation
researc
1
APA Style
Running head: APA STYLE: AN EXAMPLE OUTLINE OF A FULL RESEARCH
APA Style: An Example Outline of a Full Research Paper
Your Name
Oglala Lakota College
(TITLE: Must be specific and concise [20 word limit]. Must include variables. Must
include me
1. A firm based in Washington State wants to export a shipload of finished lumber to the Philippines. The
would-be importer cannot get sufficient credit from domestic sources to pay for shipment, but insists that
the finished lumber can quickly be resold
<?xml version="1.0" encoding="UTF-8"?> <Error><Code>NoSuchKey</Code><Message>The specified key does not exist.</Message><Key>b854226a09949e4613fda8029e4ae1371ae11ea7.doc</Key><RequestId>B BA77D735098B90D</RequestId><HostId>jze/mBYARaKNeTZnxmeXy9DYBq0Kro+8