A) The probability that the sample mean X, is less than 95 is given by
Z=X-x/ x
95-100/2= Z=-2.5
The cumulative property value corresponding to the value of Z is 0.00621
B) The Z value of 97.5 is: Z=X
A) The expected value (Mean) for each distribution can be calculated using the expected value formula
(0*0.1)+(1*0.2)+(2*0.45)+(3*0.15)+(4*0.05)+(5*0.05)= 2
B) cfw_[0-2]^2 0.1+[1-2]^20.2+[2-2]^2 0.45+
Inputs:
X-Bar
S
n
Males
40.26
13.35
100
Females
36.85
9.42
72
The Null & Alternative Hypothese
H0: 1 = 2
Ha: 1 2
Level of Significance
Degrees of Freedom
t-Critical Values a Two-Tailed Test
a = 0.05
n
Question: 7.15 Given a normal distribution with = 100 and
= 10, if you select a sample of n = 25, what is the probability
that is
a. less than 95?
b. between 95 and 97.5?
c. above 102.2?
d. There is
4.9 Referring to the contingency table in Problem 4.8, if an em-ployed adult is selected at random, what is the probability that
a. the employed adult felt tense or stressed out at work?
526/1501=0.35
8.1 If X = 85, s = 8, and n = 64, construct a 95% confidence
interval estimate for the population mean, m.
8.9 A bottled water distributor wants to estimate the amount of
water contained in 1-gallon b
A)
The intercept is 16. This is the value of Y when X=0.
B)
The slope is -0.5. It represents the expected change in Y per unit
change in X
C) When X = 6
Y = 16 - 0.5 (6)
Y = 16 - 3
Y = 13
Simple Linea
7.1 Given a normal distribution with m = 100 and s = 10, if
you select a sample of n = 25, what is the probability that X is
Sample size - n = 25
Sample mean - = 100
Sample standard deviation - = /n =
ETHICAL ISSUES IN BUSINESS STATISTICS AND THE USE OF CHRISTIAN VALUES 1
Ethical Issues in Business Statistics and the use of Christian Values
Dana Martin
Grand Canyon University: BUS-352
July 17, 2016
Inputs:
Outputs:
Source
Degrees of
Freedom
Sum of
Squares
Among
Groups
c-1=3
SSA = 240
Within
Groups
n - c = 28
SSW = 560
Total
n - 1 = 31
SST = 800
Df (amoung) = c - 1 = 4 - 1 = 3
Df (within) = n - c
2.9)
A study of Kickstarter projects showed that 54.2% were successful,
that is, achieved its goal and raised at least the targeted goal
amount. In an effort to identify network dynamics that influenc
Chapter 9 Problem Set
9.3
If you use a 0.10 level of significance in a two-tail
hypothesis test, what is your decision rule for rejecting a
null hypothesis that the population mean is 500 if you use
t
BUS-352
Module #1
1.5
The following information is collected from students
upon exiting the campus bookstore during the first week of
classes:
a. Amount of time spent shopping in the bookstore
b. Numb
Module 1 DQ 1
The media often attempts to predict the outcome of national elections. Why are they often
wrong? Based on the concepts presented in this module's readings, how could the system be
improv
Module 1 DQ 2
In conducting a survey, what do you think is even more important than the size of the
sample? Why?
I believe that eliminating bias is by far and wide the single most important part of co
Module 2 DQ 1
Referring to Chapter 2 Excel Guide, EG2, Section EG2.5 in the textbook, create a histogram
on some sample data using Microsoft Excel. Post your file to the Discussion Forum in
response t
Module 2 DQ 2
What ethical issues should you consider when creating a graph of data?
The purpose of any graph is to provide a picture representation of corresponding data. With
any graph of course the
Module 3 DQ 1
Assume the financing gurus of a weekend investment television program predicted a 50%
chance of XYZ stock gaining in January and a 50% chance of gaining in February. Your
financial advis
Module 3 DQ 2
Marie claims she can predict the sex of pregnant women's babies. She sees 1,000 women a
year, and she always predicts a female. She charges $1,000 for a prediction, and she always
predic
Name:
Shaniece Barnes
8a)
Rise
8b)
Fall
c)
Rise
d)
Fall
e)
Fall
f)
Fall
g)
Rise
h)
Fall
Mod 7, Chapter 36
HELP! Audio Explanation To Get You Started
Demand & Supply For Dollars: Page791-793 In Your Te
Project Owner's Backing
History
Project Outcome
Successful
Not Successful
Total
Percentages
Backing
History
No Backing
History
Total
Backing No Backing
Total
Percentage Percentage Percentages
17,667
1
Running head: WEST COAST TRANSIT
1
West Coast Transit Case
Ranzel Tinio
Grand Canyon University: MGT-420
October 29, 2017
West Coast Transit
2
The West Coast Transit Company is an airline known for th
Question: 6.1 Given a standardized normal distribution (with a mean
of 0 and a standard deviation of 1, as in Table E.2), what is
the probability that
a. Z is less than 1.57?
b. Z is greater than 1.84
Module 4 DQ 2
Describe the term mutually exclusive. Provide some examples. Must the values of x in a
discrete probability distribution always be mutually exclusive? Why or why not? Provide an
example.
Module 4 DQ 1
Provide some examples of discrete and continuous variables. What attributes of these
variables make them discrete and continuous? Why?
There are 80 books in the original King James Bible
Given that the null hypothesis states that the mean is 500,
the rule will be found using the equation for the Z test,
Z stat= X-500/n, and scores for 0.05 and 0.95
Comparing to table of Z scores, the
Year
Need three or more clicks to be removed
Yes
No
Total
2009
39
61
100
2008
7
93
100
Total
46
154
200
A) We want to find the probability for the randomly selected online retailer
three or more click
A) Contingency table based on total percentages of all 1000 tests performed is as shown below:
Percentage can be calculated using the formula given below:
Percentage= Number of tests in a cell/Total N
a) Let ^1 be the true mean computer anxiety experienced by males and ^2
be the true mean computer anxiety experienced by females.
Null hypothesis: There is no significant difference between the mean c
The objective of the study is construct ANOVA table. The summary statistics are as follows.
Number of Groups, c=4
Number of values in each group, n^j=8
Total number of values in all groups
N^1+n^2+n^3
Problem 10.11
An important feature of tablets is battery life, the number of hours before the battery needs to be recharged. The file Tablets contains
the battery life of 12 WiFi-only and 7 3G/4G/WiFi
BUS 352 GRAND CANYON WEEK 7 COMPLETE WORK
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BUS 352
GRAND CANYON BUS 352 WEEK 8 PROBLEM SET AND
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GRAND CANYON BUS 352 WEEK 5 PROBLEM SET AND
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