Statistics
Tree Diagram Assignment
(From Problem 21 on p. 293) Suppose that you just received a shipment of 6 televisions. Two of the
televisions are defective. Suppose that two televisions are selected at random. The tree diagram below
illustrates the pr
Measures of Position, Outliers, and Boxplots Written Assignment
1. (This is Problem 6 on p. 161 of your textbook.) The 2010 population mean and standard deviation
weights for babies born after 32 35 weeks and for those born after 40 weeks are listed in th
2. In a study of a new cholesterol medication, 25 males were randomly selected to take the
new medication. The histogram at the right displays the distribution of their ages.
The first class, labeled 45, actually consists of all men in the sample who are
Elizabeth
STOOL]
Statistics
Lottery Problem
The Cash Five Lottery in Connecticut is described in Problem 30 on p. 326 of your textbook. The possible
outcomes of the game are summarized in the table below:
x (Cash Prize, 5) P(x) x =I= P(x)
100,000
1
300
Statistics
Grouped Data Assignment
1. The table below is a frequency-distribution that represents the square footage of a random sample of
500 houses.
Square Footage
0+50_
=l.5'
.- .
2 \
.
H0 - as
W ms
Complete the table abov
Family Size
Bins
0
3
1
4
2
0
2
4
0
4
2
2
1
3
0
3
3
3
1
3
3
3
3
3
1
3
3
2
4
3
1
5
2
0
0
2
1
2
2
2
3
3
3
4
3
1
0
1
Statistics
Histogram Exercise
Problem 1
The data set in column A (from problem 5 on p. 111 of your
textbook) represents the number of children
Tap
7.64
7.45
7.45
7.1
7.47
7.56
7.5
7.47
7.68
7.52
7.69
7.47
Bottled
5.15
5.28
5.09
5.26
5.26
5.13
5.2
5.26
5.02
5.21
5.23
5.24
Descriptive Statistics Excel Assignment
The data sets in columns A and B (from Problem 17
on p. 152 of your textbook) represen
Credit Score
Interest Rate (percent)
545
18.982
595
17.967
640
12.218
675
8.612
705
6.68
750
5.15
Statistics
Correlation and Regression with Excel
Assignment 1 (no Data Analysis)
The data in columns A and B represent credit scores
(x) and interest rates (
Bins
Frequency
15.9
12
18.4
10
20.9
9
23.4
6
25.9
3
More
0
College Students Online
Frequency
15
10
5
0
15.9
18.4
20.9
23.4
25.9
Average number of hours per week
More
Statistics
2.1 Written Homework
Use the data from problem 24 on p. 74 to construct the table and two graphs
described below.
1. Complete the frequency diagram.
Blood Type
O
A
B
AB
Frequency
22
18
6
4
2. Construct a bar graph of the data. Make sure that yo
Bins
More
Frequency
0
6
1
6
28
Children in Selected Families
30
25
20
15
Frequency 10
5
0
0
1
Number of Children
More
Bins Frequency
15.9
12
18.4
10
20.9
9
23.4
6
25.9
3
More
0
College Students Online
14
12
10
8
Frequency 6
4
2
0
15.9
18.4
20.9
23.4
25.9
Statistics
Distribution of the Sample Proportion Simulation (Reeses Pieces)
1. Suppose that 45% of all Reeses Pieces candies that are manufactured are orange. That is, the
population proportion of orange Reeses Pieces is p =- 0.45.
(a) Calculate the mean
Statistics
Applications of Normal Distributions Assignment
A certain brand of light bulb is advertised to last 1600 hours. Suppose that the lifetimes of the light
bulbs are normally distributed with a mean lifetime of 165 _ and a standard deviation of 60
Statistics
Assessing Normality Assignment
1. The table below contains data on the heights of a random sample of adult US males. Construct a
normal probability plot using your calculator, and state whether or not the data came from a population
that is nor
Elizabeth Si-Ooh
Final Project Histogram Assignment
September 12, 2016
Arm Span of People
Frequency
8
6
4
2
0
63.5
67
70.5
60
More
Length of Arm
Height Spans of People
Bin
58.5
62.375
66.25
70.125
Frequency
10
5
More
0
66.25
70.125
62.375
58.5
More
Height
Statistics
Discrete Probability Distribution Assignment
1. A 911 service recorded the number of calls received per hour for one week (168 hours). The random
variable x represents the number of calls per hour for this week.
Frequency
2 2/168 = 0.01
24/
Statistics
Case Study Assignment
Read the Case Study: A Tale of Blood Chemistry and Health on p. 391 of your textbook. Abby's
test results are in the table on p. 392.
Notice that Abby's white blood cell count (first item in the table) at 5.3 is below the
Statistics
Sampling Distribution of the Sample Mean Assignment
1. Heights of men in a certain population are normally distributed with meanw=7tfiriches and
standard deviation or: 3.0 inches.
(a) Random samples of size 9393: selected from this population.
Statistics
Sampling Distribution of the Sample Proportion Assignment
Suppose that 39% of all adults in a certain population have Type 0+ blood. (Assume that the population
is so large that a sample of size n =_$()_0 is less than 5% of the populations.)
(a
Final Data Analysis Project: Descriptive Statistics
Open the Excel data set that you constructed in the Final Project Random Sampling Assignment in
Module 2. (This data set contains Heights and Arm Spans from a random sample of 20 subjects.)
1. Use Data/D
Eliza 41'
$05)
Statistics
Continuous Probability Distribution Assignment
1. The distribution of random variable X is uniform for 10 S x S 60.
(3) Sketch this distrib 'on. (To determine the height of the distribution, remember that the total area is
1.)
Elizabeth Si-Ooh
Final Project Histogram Assignment
September 12, 2016
Arm Span of People
8
6
Frequency
4
2
0
63.5
67
70.5
60
More
Length of Arm
Height Spans of People
10
8
6
Frequency 4
2
0
66.25
70.125
62.375
Height of a person
58.5
More
Bin
The Shapes