Lesson 1: Gathering Data
Lab Assignment
Answer the following questions showing all work. If you use Minitab Express include
the appropriate output (copy + paste) along with an explanation. Round all answers
to 3 decimal places.
1. There are 83,436 Penn St
LAB ACTIVITY 4
Due Friday, Sept. 16 at 11:59pm
(Use Temperature.mtw Dataset in ANGEL)
Activity 1: Observed values and Z-scores.
A z-score, or standardized score, is a measure of how many standard deviations an observed
value is from the mean. It can be po
LAB ACTIVITY 5
Due Friday, Sept. 23 at 11:59pm
(Use ClassData_FA2016.mtw dataset)
Activity 1
Open the data set ClassData_FA2016.mtw in Minitab.
1. How many variables in this data set (excluding the Section variable) could be used to create a
scatterplot?
LAB ACTIVITY 1
Due Monday, August 29, 2016 at 11:59pm
Welcome to the first real lab assignment of the semester! Remember that each lab
assignment (including this one) will be worth 10 points. Youll get to keep your best 12 lab
assignment grades, so there
LAB ACTIVITY 8
Due Friday, Oct. 14 at 11:59pm
Activity 1 (Does not require Minitab): For the following situations, decide which represent
binomial random variables. If a situation is binomial, specify n and p. If it is not, specify which
of the four condi
LAB ACTIVITY 7
Due Friday, Oct. 7 at 11:59pm
(Use ClassData_FA2016.mtw dataset)
NOTE: In Activity 2 part d, there is a small extra credit activity whose deadline is 1:00 on
Monday, Oct. 3. This question builds on Activity 1, so just work through the lab f
LAB ACTIVITY 2
Due Friday, Sept. 2 at 11:59pm
(Use ClassData.MTW Dataset in Angel)
The primary goal of todays lab is to practice differentiating between
variable types, and to gain experience summarizing categorical variables
using tables and bar graphs.
LAB ACTIVITY 3
Due Friday, Sept. 9 at 11:59pm
(Use ClassData_FA2016.MTW Dataset in ANGEL)
Activity 1: Graphical Summaries for Quantitative Data
1. First we will investigate the variable Height.
Create a histogram for height: Graph Histogram Simple OK sele
Points Awarded
18.00
Points Missed
Percentage
0.00
100%
1.
Suppose that a student needs to buy 15 books for her history course. The number of books that she
will be able to find used is a binomial random variable X with n = 15 and p = 0.30. In other words
Points Awarded
Points Missed
Percentage
7.00
11.00
38.9%
1.
Suppose that a student needs to buy 6 books for her history course. The number of books that she will
be able to find used is a binomial random variable X with n = 6 and p = 0.30. In other words,
Solution
Describing Data Solution
Problem 1 (BY HAND type in your work):
Consider the following three sets of sample observations:
Set 1: 8, 9, 10, 11, 12
Set 2: 8, 9, 10, 11, 100
Set 3: 8, 9, 10, 11, 1000
A) Find the median and IQR for each data set.
Med
Points Awarded
25.00
Points Missed
Percentage
0.00
100%
1.
Which of the following is true about the margin of error for the most common types of surveys?
A) If the number of individuals in the sample were to be substantially decreased, the margin of
error
Solutions
Discrete Distribution Solutions
1. Are you someone who prefers to take risk or avoid risk?
A. You are given $10,000 to invest. You must choose between (i) a sure loss of $2,500 and (ii) a 0.50
chance of losing $5,000 and a 0.50 chance to lose no
Points Awarded
14.00
Points Missed
Percentage
1.00
93.3%
1.
Decide if the probability described is a subjective (personal) probability or a relative frequency
probability: A football fan believes that the Oakland Raiders have a 50% chance of winning the n
Points Awarded
3.00
Points Missed
9.00
Percentage
25.0%
1.
Correcly identify if the following random variables as either discrete or continous. A gallon of orange
juice.
A) Discrete
B) Continuous
Feedback: Keep in mind that a gallon is a measurement and t
Points Awarded
12.00
Points Missed
Percentage
0.00
100%
1.
Correcly identify if the following random variables as either discrete or continous. A gallon of orange
juice.
A) Discrete
B) Continuous
Feedback: Keep in mind that a gallon is a measurement and t
LAB ACTIVITY 6
Due Friday, Sept. 30 at 11:59pm
(Use ClassData_FA2016.mtw dataset)
Activity 1: Types of bias in surveys.
Penn State Pulse conducts a survey about the frequency of academic cheating.
Identify each of following as an example of non-participat