Topics for Exam #3
Be prepared to successfully do problems like those assign for homework from your textbook found in
Sections 6.1, 6.2, 7.1, 7.2, 7.3, 8.1, 8.2, 9.1 and 9.2. In addition, at the very least, be prepared with the
following:
1.
2.
3.
4.
5.
6
Minitab Lesson #4
Copy and paste your outputs into a Word document.
For homework, I would like you to answer the following exam problems using Minitab.
A
6. It is a widely known fact that 80% of all male college students in a relationship
hide their girlf
ANSWER KEY
Name: Answer Key
April 2014
STAT 145
MINITAB LESSON #3
ANSWER KEY
ANSWER KEY
PART ONE:
Theoretical Probability Density Function
Binomial with n = 10 and p = 0.2
P( X = x )
0.107374
0.268435
0.301990
0.201327
0.088080
0.026424
0.005505
0.000786
STAT 145-11 Statistics I
COURSE INFORMATION SHEET
Spring 2014
Classes held on Tuesday and Thursday evenings, 6:30pm 7:45pm in Gosnell,
room 1174.
Course Description:
This course will study the statistical methods of presenting and
analyzing data. Topics c
Minitab Lesson #4
A
ANSWER KEY
A. It is a widely known fact that 80% of all male college students in a relationship
hide their girlfriends socks. In a random sample of 20 male college students,
find and interpret
a. The probability that exactly 15 hide so
MINITAB LESSON #3
STAT 145
SPRING 2014
Imagine that our Statistics class is given an impossible multiple-choice quiz where the only way to
answer each question is to guess at the answer. Suppose that the quiz is made up of 10 questions,
each having five p
Statistics
Spring 2014
Probability Homework Exercises
1.
Which of the following numbers cannot be the probability of some event?
(a) 0.71
(b) 4.1
(c) 1/8
(d) 0.5
(e) 0.5
(f) 0
(g) 1
(h) 150%
2. When do creative people get their best ideas? USA Today (Janu
Course and Section: _ NAME: _
Date: _
WS #9 Dice, Cards and Tree Diagrams
Express answers as both a fraction and a decimal rounded to 4 decimal places.
PROBLEM 1: The experiment conducted is rolling a die 2 times. Lets define event A as it comes up 4.
YES
Course Number and Section _
Date: _
NAME: _
WS #2 Summaries for Categorical Data
1. In the 2008 General Social Science Survey, two of the questions asked had to do with happiness and
health. The data are summarized in the tables below. The exact wording o
w; M
Course and Section: ill {i I NAME: "1
Date: 2 r [3.6
SamplingDistributions 1
1. Suppose ATM withdrawals have a mean of $60 and a standard deviation of $35. If a random sample of
50 ATM withdrawals is obtained, determine the probability of obt
, 1 \u;
Course and Section: I » "~- 0 " NAME: '?
Date: "7 f
HypotheSIS Testing Mixed Practice ~ 3
1. A FEW survey found that 1063 of a sample of 2054 of adults said they played Video games. Test the
hypothesis that more than half of all adult play Vid
/ 9?
Course and Sections: W, 5 NAME: \{u p p ..
Date:
l
Applications of the Normal Distribution 2
l. A normal probability plot suggests that it is plausible that the sample was drawn from a population
which is normally distributed when:
a
Alana Bichutsky
Weekly Assignment #1
STAT 146 Introduction to Statistics II
1.
a.
Input
Distribution
Norma
l
Mean
15
Standard
deviation
0.1
Input value
14.8
Normal CDF for 14.8
0.0227501319471205
The probability that a randomly selected tank will hold at
Alana Bichutsky
STAT 146 Introduction to Statistics II
Weekly Assignment #3
Task 1:
a.
DescriptiveStatistics
N
Mean
StDev
SEMean
8
53.100
7.029
2.485
95%CIfor
(48.229,57.971)
:meanoftimes
Knownstandarddeviation=7.029
We are 95% confident that the mean tim
Class and Section_
DATE: _
NAME: _
WS # 16: Reverse Lookup with Applications
1. What Z -score corresponds to the top 5%? (This is a reverse look-up problem)
Show what area would represent the top 5%.
Label the axis with z and label the center
with the val