Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Exam 1 Review Questions.
1. Administrators at a large university want to know the average debt incurred by their graduates. Surveys were mailed to 210 graduates asking them
to report their total student loan debt. Identify the population and sample in
the
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Introduction to the TI83/84
Clearing the memory of the TI83/84 graphing calculator:
Some of you may have used calculators, and these calculators may have items stored in memory by the
previous owner. In addition, after you have been using your calculato
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
STA 2014 Elementary Statistics for Health and
Social Science Majors Fall 2010
Section: 82136
Instructor: Pablo Crespo
Oce: Building 51 Room 3127
Phone: ?
Email: pablo.crespo@unf.edu
URL:http:/www.unf.edu/~pablo.crespo/
Oce Hours: MW 1:302:30 PM and TR 1
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
STEPS IN STATISTICAL HYPOTHESIS TESTING
Step 1: State the null hypothesis, H0, and the alternative hypothesis, Ha. The alternative hypothesis
represents what the researcher is trying to prove. The null hypothesis represents the negation of what the
resear
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
STA2014 Review For Exam 2
1.The data below are the nal exam scores of 10 randomly selected history students and the number of hours they
slept the night before the exam. Suppose we want to predict the score of the exam using the hours slept the night befo
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Sampling Distributions and the Central Limit Theorem
Whenever we select a random sample from a population, collect data from the members of the
sample, and summarize the data values in the form of a statistic, that statistic is a random variable
(dependin
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Review 3 STA 2014
1. Mahalo Burgers, Inc, claims that the mean gross revenue of Mahalo Burgers stores is $300000 per year with
a standard deviation of $72000.
a) If a random sample of 38 stores in the franchise is selected, describe the sampling distribut
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Statistics 2014, Spring 2010
Final Exam Review Topics
Chapter 1 Data Collection
Statistics, Population, Sample, Parameter, Statistic, Variable, Data
Branches of statistics: Descriptive, Inferential
Types of data: 1) Attribute, or qualitative 2) Numerical,
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
1
Understanding Probability Laws
Let a random experiment have sample space S. Any assignment of probabilities to events must satisfy three basic laws of
probability, called Kolmogorovs Axioms:
1) For any event A, P(A) 0.
2) P(S) = 1.
3) If A and B are two
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Normal Approximation to the Binomial Distribution
Using the Central Limit Theorem
Assume that I select a random sample of size n from a population, where n is large. For each
member of the sample, I want the answer to a yesorno question. For sample memb
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Chapter 10 Testing Claims Regarding a Parameter
The other branch of statistical inference is concerned with testing
hypotheses about the value of parameters.
Defn: A hypothesis is a statement about the value of a population
parameter.
Defn: In a hypothesi
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Chapter 9 Estimating the Value of a Parameter
Using Confidence Intervals
There are two branches of statistical inference, 1) estimation of parameters and 2) testing hypotheses
about the values of parameters. We will consider estimation first.
Defn: A poin
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Chapter 8 Sampling Distributions
Defn: Sampling error is the error resulting from using a sample to infer a population
characteristic.
Example: We want to estimate the mean amount of PepsiCola in 12oz. cans coming off an
assembly line by choosing a rand
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Chapter 7 The Normal Probability Distribution
The normal distribution is a special type of bellshaped curve.
Defn: A random variable X is said to be normally distributed or to have a normal distribution if its
distribution has the shape of a normal curve
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Chapter 6 The Binomial Probability Distribution
Defn: A random variable is a variable whose values are determined by chance. We will denote a
random variable by a capital letter, such as X, and denote particular values of the variable by the
corresponding
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Chapter 5 Probability
Defn: A random experiment is one for which the outcome cannot be predicted with certainty.
Defn: The set of all possible outcomes of a random experiment is called the sample space of the
experiment.
Defn: An event is a subset of the
Elementary Statistics for Health and Science Majors
STA 2014

Fall 2010
Chapter 5 Probability
Defn: A random experiment is one for which the outcome cannot be predicted with certainty.
Defn: The set of all possible outcomes of a random experiment is called the sample space of the
experiment.
Defn: An event is a subset of the