Statistics
01/23/2017
Stat- number that descives sample
Parameter- number that describes population
Stratified sampling- pupluation divided into groups, random sample
gathered from each group ; divide into groups called strata
Cluster sampling- random gro
stat1
02/27/2017
Stat- number that descives sample
Parameter- number that describes population
Stratified sampling- pupluation divided into groups, random sample
gathered from each group ; divide into groups called strata
Cluster sampling- random groups a
stat 2
02/27/2017
Frequency- number of times it occurs in the data set
Frequency distribution- table that presents frequency for each category
Relative frequency- the proportion of relative observations in a
category
Relative frequency = frequency
Sum of
Lesson 5: Probability Distributions NAME
Due Monday, September 26
Answer the following questions showing all work. Full credit will not be given to
answers without work shown. If you use Minitab Express include the appropriate
output (copy + paste) along
1. Costners Market recorded the following events involving a recent purchase of
merchandise:
Received goods for $20,000, terms 2/10, n/30.
Returned $400 of the shipment for credit.
Paid $100 freight on the shipment.
Paid the invoice within the discount pe
San Francisco State
Accounting 100
Midterm 2
16. DURING ITS FIRST YEAR OF OPERATIONS, LITTLE BUSTERS CORPORATION
HAS PURCHASED ITS ENTIRE INVENTORY IN 3 SEPARATE BATCHES AS
FOLLOWS:
BATCH
ONE (10/1/14)
TWO (10/15/14)
THREE (10/31/14)
UNITS BOUGHT
2,000
4,
Sampling
No data sets used for this activity
Non-response bias refers to a bias that occurs if people with a particular opinion or trait tend to refuse
to answer certain survey questions (or possibly refuse to participate in the survey at all).
Response b
SOLUTIONS TO ACTIVITY SET 5
Activity 5.1: Sleep apnea is a pattern of irregular breathing during sleep, with longer than normal breathholding intervals. The following two-way table shows counts of men and women with sleep apnea or not,
from a sleep study
Lab Activity 4 - Probability Distributions
there are a number of video resources for Lesson 5 posted
at https:/onlinecourses.science.psu.edu/stat200/node/177
No data sets used for this activity.
1.
For each of the following, indicate if the variable of in
Sampling Distributions of Sample Statistics
Two common statistics are the sample proportion, p^, (p-hat) and sample mean, x, (x-bar).
Sample statistics are random variables and therefore vary from sample to sample. As a result, sample
statistics also have
Lab Activity 2
STAT 200
Katie Daniel
A. Nonresponse Bias: Employees may choose not to participate in the survey for
fear that it would not be anonymous, and they could risk losing their jobs based
on their answers.
Response Bias: Employees may answer dish
A Quick Introduction to Minitab Statistical Software
This introduction to Minitab is intended to
provide you with enough information to get you started using the basic functionality of Minitab. Of
course, you will learn more about Minitab and its capabili
STATISTICS 200, World Campus Section 005: Elementary Statistics
Instructor: Jonathan Cody Steele (Youll see my first name filled out by default, but I use my
middle name.)
Email: Use ANGEL email system
Email: Use ANGEL email system under Communicate tab.
Population: The entire set of possible observations in which we are interested
Sample: A subset of the population from which data is actually collected
Examples
Student Housing
A survey is carried out at Penn State Altoona to estimate the proportion of un
STAT200 Lesson 3 Notes
Categorical: Names or labels without a meaningful order of magnitudes, also known as
qualitative
Quantitative: Numerical values with magnitudes that can be placed in a meaningful order, also
known as numerical.
Discrete: Data that c
Decide if the sample is representative (or not) of the population for the question of interest.
Question: Average age of people in Salt Lake City. Sample: 10 people picked randomly from all
people living in Salt Lake City. Population: All people living in