Darushy Rivera
Professor Hernandez
MGF1106
09/23/17
Module 1 Assignment
6. Is cfw_A, B, C a subset of the set of letters of the alphabet?
Yes cfw_A, B, C is a subset of the set of letters in the alphabet
Using the sets from above, and treating U as the Un
STA1001 Final Exam Review
Please note that this is a final exam review and is provided to you to give an idea of the scope of
the exam; it is not simply the final exam with numbers changed. Questions may appear on the
final exam that are not on this revie
.
138.
Suppose you will perform a test to determine whether there is sufficient evidence to support a claim of a
linear correlation between two variables. Find the critical values of r given the number of pairs of data n
and the significance level alpha:
.
134.
State what the given confidence interval suggests about the two population means.
A researcher was interested in comparing the amount of time spent watching television by women and by
men. Independent simple random samples of 14 women and 17 men we
.
137.
y
b)
a)
y
y
20
20
0 0
00
0
0
-20
20
0
0
0
-20
X
20
X
20
X
00
0
-20
-20
d)
c)
y
y
20
20
0
Oo
0
0
-20
0
-20
0
0
0
00
0
20
X
-20
-20
ANSWER KEY
l.A
2.B
3. B
4.A
5.D
6.D
7.D
8.D
9.A
10. B
11. B
12. B
13. D
14.B
15.A
16.B
17. D
18. D
19. D
20.A
2l.B
22.
.
129.
Construct the indicated confidence interval for the difference between the two population means. Assume
that the two samples are independent simple random samples selected from normally distributed
populations. Do not assume that the population sta
:
populations. Do not assume that the population standard deviations are equal.
Two types of flares are tested and their burning times (in minutes) are recorded. The summary statistics
are given below.
Brand X
n=35
x = 19.4min
s = 1.4 min
BrandY
n=40
x =
122.
In a vote on the Clean Water bill, 48% of the 205 Democrats voted for the bill while 42% of the 230 Republicans
voted for it.
(c) z = 0.754
(d) z = 1.382
(a) z = 1.256
(b) z = 1.068
123.
The table shows the number of households burglarized in a sampl
(a) There is not sufficient sample evidence to support the claim that the percentage of college applications
submitted online is equal to 50%.
(b) The sample data support the claim that the percentage of college applications submitted online is equal to
5
STA2023
FINAL EXAM REVIEW
1.
2.
3.
Data that can be classified according to color are measured on what scale?
(b) Ordinal
(c) Interval
(a) Nominal
(d) Ratio
The difference between a sample result and the true population result is knows as:
(a) Population
STA2023
FINAL EXAM REVIEW
1.
2.
3.
Data that can be classified according to color are measured on what scale?
(b) Ordinal
(c) Interval
(a) Nominal
(d) Ratio
The difference between a sample result and the true population result is knows as:
(a) Population
Note: You may use the Excel calculator for these exercises and submit the sheet to
show your calculations.
Exercise 1
Ten individuals went on a lowfat diet for 12 weeks to lower their cholesterol. Evaluate
the data below. Do you think that their cholester
A sample of 16 small bags of the same brand of candies was selected. Assume that the
population distribution of bag weights is normal. The weight of each bag was then
recorded. The mean weight was 2 ounces with a standard deviation of 0.12 ounces. The
pop
Student
#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Crd/Hrs Total Crd
Sem
Hrs
GPA
On line First in Employ
Hrs
Depend High Sch
Classes Coll
Work/wk Child
Gender
Age
Race
Major
M
23
W
BUS ADM
6
32
2.10
Y
N
Y
25
N
US
US
F
37
Type
Paper
Iron/steel
Aluminum
Yard waste
Glass
Plastics
Amount
320
282
268
242
196
42
Trash Recycled per year
350
300
250
200
number of tons (in millions)
150
100
50
0
Paper
Iron/steel
Aluminum
Yard waste
Type of trash recycled
Glass
Plastics
Lecture Slides
Elementary Statistics
Tenth Edition
and the Triola Statistics Series
by Mario F. Triola
Slide
1
Chapter 6
Normal Probability Distributions
6-1 Overview
6-2 The Standard Normal Distribution
6-3 Applications of Normal Distributions
6-4 Sampli
STATISTICS: STA 2023
Chapter 7
1. Find the critical value Z/2 that corresponds to a 99% confidence level.
(a) 1.645
(b) 1.96
(c) 2.575
(d) 2.32
2. Find the critical value Z/2 that corresponds to an 85% confidence level.
(a) -1.44
(b) 1.04
(c) 1.85
(d) 1.4
STATISTICS: STA 2023
Chapter 5
INSTRUCTIONS: Answer all questions. Shade the correct answer in
your scantron for each of the questions on the quiz.
Defective Circuits: Questions 1 8 pertain to the table below which
show the probability distribution of the
STATISTICS: STA 2023
Chapter 4
INSTRUCTIONS: Answer all questions. Shade the correct answer in
your scantron for each of the questions on the quiz.
1.
On a multiple choice test with five possible answers for each question,
what is the probability of answe
STA2023
QUIZ # 1
INSTRUCTIONS: Answer all questions. Shade the correct answer in your scantron for each of the
questions on the quiz.
1. True or False: The collection of all boats registered in the United States is an example of a
population.
(a) True
(b)
STA2023
QUIZ # 2
INSTRUCTIONS: Answer all questions. Shade the correct answer in your scantron for each of the
questions on the quiz.
1. The first two classes of a frequency distribution are 0-19 and 20-39. What is the class
width?
(a) 19
(b) 10
(c) 19.5
STATISTICS: STA 2023
Chapter 6
1
Assume that readings on thermometers are normally distributed
with a mean of 0
degrees and a standard deviation of 1.00. A
thermometer is randomly selected and tested. Find the
probability that the reading on the thermomet
. pp. STATISTICS: STA 2023
Chapter 8
Questions 1 7 are based on the following:
Is Facebook the most popular social media app among the North Camus student
population? In a recent survey of 70 North Campus students, 56 indicated that
Facebook was their num
STA2023:
QUIZ # 3
INSTRUCTIONS: Answer all questions. Shade the correct answer in your scantron for each of the
questions on this quiz.
1. Each of the following is a measure of center EXCEPT
(a) Mean
(b) Mode
(c) Mid-Range
(d) Variance
2. Which measure of