Band:
Abaddon Incarnate (also known as Bereaved)
Acid Bath
Amon Amarth
Arch Enemy
Atheist
Becoming the Archetype
Between the Buried and Me
Bolt Thrower
By Night
Carcass
Centinex
Comecon
Crimson Thorn
Dance Club Massacre
Dead Infection
Deceased
Demiricous
n
x-bar
mean
CL
a)
upper
lower
36
87
10
0.95
97
77
b)
If CL increase to 99% the ME would increase too.
since the ME is determine by z*, the critial value for a particular CL.
when the value is increased, assume sigma and n won't change, the ME will increa
n
x
p-hat
1-p-hat
var
159949
62380
0.38999931
0.61000069
0.23789985
SE
0.00121957
CL
alpha
0.99
0.01
z*
2.5758293
ME
0.0031414
b)
all of the facts suggest possible sources of error in this study because none of the potential errors are covered by the ME f
S
P
0
1
2
3
Suppose October days have a 30% chance of rain.
Consider the distribution of total rainy days among 3
random days
Expected value, = n*p=0.9
:
Var:
sigma:
Given a binomial variable with 30% chance of sucess,
describe the distribution of total #
n
p
P(x=9)
P(x5)
P(x11)
1-P(x<10)
or P(N14)
P(6x9)
P(x9)-P(x5)
x*so P(xx*)<0.05
P(x4)
P(x3)
25
0.3
Given that 30% of a population enjoys square-dancing, find the probability that an SRS of sixe 25 from this population
will find:
a) Exactly 9 square-dancer
a)
while each item costs $1 and two items for $2 and three items for $3, in order to determine which promotion works better, they should be held on the same day of
b)
two diferent campaigns in 2 diferent states is not efective way to determine which campa
Video Game
A Boy and his Blob
Ace Combat 6: Fires of Liberation
Banjo-Kazooie: Nuts and Bolts
Blackwater
Conduit 2
Darkest of Days
Deathsmiles
Demon's Soul
Disgaea D2: A Brighter Darkness
Donkey Kong Country Returns
Dragonball Z for Kinect
Fable 2
Forza M
p
n
0.65
50
x
30
p(x=30)
p(x30)
0.08750881
0.27356369
Suppose 65% of the population has eaten venison sometime in their lives. Suppose an SRS of 50 people is taken.
What is the (actual) probability that exactly 30 people in the sample have ever eaten veni
chapter 7
estimating / hypothesis testing
about without sigma
(can be in project)
using s as an estimate of sigma
Things get "worse"
what does that mean to interval
i) Intervals are wider
what does that mean for hypothesis test
ii)hypothesis testing: H0 i
425 Computer Lab 3, chapter 2
1. Utilizing the Movie data:
a) Compute the correlation between Budget (explanatory) and Gross (response).
b) Compute the regression line.
c) Graph a scatter-plot and regression line (use Excels Trendline function).
d) Comput
Chapter 3 & 4 Computer lab, Math 425
1. Suppose 30% of a population likes square-dancing. Use Excel to simulate taking an
SRS of size n=25, denoting a yes with a 1, and a no with a 0. Repeat this 50 times.
Now build a histogram of the distribution of surv
Math 425 - Computer Lab 5.
Binomial Distribution:
1. Suppose 65% of the population has eaten venison sometime in their lives. Suppose an
SRS of 50 people is taken. What is the (actual) probability that exactly 30 people in the
sample have ever eaten venis
a)
sigma(ind)
n
7.02
1.15
200
sigma(avg)
7.02
0.08131728
b)
lower
upper
4.76604142
5.12841833
c)
p(x<6.9)
0.07001207
about 7% of college students get less than 6.9 hours of sleep at night
a)
sigma(ind)
10
280
sigma(avg)
10
88.5437745
b)
sigma(avg)
sigma(i
Math 425 Chapter 6 Computer Lab
1. 673 students participated in a survey rating various activities importance for success in
college. Recreational sports and activities received an average rating of 7.5. Assuming
= 3.9, find:
a) The margin of error and 9
a)
b)
c)
d)
e)
f)
quantitative, because it is measurable
categorical,because it has options, which can see it as categories.
categorical,because it has 3 options, we can see it as categories.
quantitative, because it is measurable
quantitative, because it