COURSE SYLLABUS
Ohio Northern University
College of Arts and Sciences
Department of Mathematics and Statistics
Effective Date: Fall 2011-12
Course: STAT 1761
Name: Statistics for Pharmacy
Credit hours: 3
Lecture hours/week: 3
Lab hours/week: 0
Instructor: Staff
Usual student level: P2
Course required of and limited to students in: Pharmacy
Course frequency per year: Offered Every Year, Fall Semester, Spring Semester
Average enrollment per year: 160
This course has a prerequisite: MATH 1401 or equivalent
This course is a satisfactory prerequisite for: STAT 2561
Catalog Description: Describing data graphically and numerically; Describing bivariate data;
Probability concepts; Random variables and probability distributions (both discrete and
continuous); Sampling distributions; Statistical inference (point estimation, confidence intervals,
hypothesis testing) for single means and proportions, and the difference between two means
and proportions; Statistical study designs.
Course Objectives: To introduce the students to data analysis, concepts of probability, and
fundamentals of statistical inference as used in Pharmacy.
Textbook: “Biostatistical Analysis” by Zar (Prentice Hall 5e)
Outline of content follows:
(see attached)
Course Outline
STAT 1761
Title: Statistics For Pharmacy
Introduction (2 hours)
Population; sample
Descriptive vs. inferential
Types of data (ratio, etc.)
o continuous and discrete data
Simple random sample
Descriptive Statistics (4 hours)
Understanding summarized data; histograms
Mean and median, 1st and 3rd quartiles
Understanding summarized data: box and whiskers
Variance, standard deviation, coefficient of variation
Bivariate quantitative data – scatter diagram
Probability Concepts (5 hours)
Probability assignment through relative frequencies
Probability assignment through equally likely outcomes
Conditional probability
Independence
Ratio, proportion, and rate
Incidence and prevalence
Relative risk and odds ratio
Bayes' Theorem
o rate of infection if a group is exposed to a pathogen
o sensitivity of a test
o specificity of a test
o predictive value of a test
Probability Distributions (6 hours)
Binomial distribution
o Identify setup resulting in binomial distribution
o binomial probability formula – how to use it
o using calculator for probabilities (instead of tables)
probability function
o
cumulative distribution function
expected value & variance formulas
Standard normal distribution
o continuous distributions
o describe graphically; E(Z)=0, V(Z)=1
o probabilities using calculator
Other normal distributions
o standardization
o probabilities using calculator
Sampling Distributions (5 hours)
Distribution of sample mean X
o example of taking a random sample of size 2 with replacement from a numerical
pop.{ 80, 100, 100} of size 3 X
o
o
o
o
compute expected value, variance of X
compare to pop mean, variance
formulas, sampling with/without replacement
sampling from normal population
sampling from a possible non-normal population: Central Limit Theorem
sampling from non-normal population (large sample size)
Distribution of sample mean X 1 X 2
o
o
o
compute probability distribution of X
normal pops
non-normal, large samples
computing probabilities
Sample proportion P̂
o population proportion: p
o
sample proportion: p̂
o
o
distribution of random variable P̂ - relation to binomial
expectation; variance
o
o
o
distribution of P̂ - large sample sizes
continuity correction
computing probabilities
Difference of sample proportion s Pˆ1 Pˆ2
o
distribution - large sample sizes
o
computing probabilities
Point and Confidence Interval Estimation (8 hours)
Estimation of
o
o
o
o
o
o
o
o
o
o
o
o
o
know what a point estimate is
know what an unbiased estimate is
know what a consistent estimator is
interval estimation of µ
know what a confidence level represents
find critical value z1-/2
find confidence interval estimates of µ when σ known
when sampling from normal population
when sampling from non-normal population but with large sample size,
unknown
know why central limit theorem used
for given confidence level and , and a desired error margin W, calculate the
necessary sample size n
find confidence interval estimates of µ when σ unknown
t distribution
know properties
use TI solver to find critical values
know when
X
S/ n
use it to estimate when small size sample from normal distribution,
unknown
find confidence interval estimates of µ when σ unknown
Estimation of 1-2
Estimate 1-2 in various situations
o
o
o
when 1 and 2 known
when 1 and 2 unknown but assumed to be equal
pooled variance s 2p
use of TI's 2-SampTInt
when 1 and 2 unknown and possibly not equal: use of TI's 2-SampTInt
Estimation of p
o
has a t-distribution with n-1 degrees of freedom
know formula and understand how to use
Estimation of p1-p2
o
know formula and understand how to use
Hypotheses Tests (7 hours)
Know what the null and alternative hypotheses are
o
o
research hypothesis
know how to choose them
Know what a type I error is
Know what a type II error is
Know what and represent
Be able to identify one tail and two tail tests
Know what p-value represents; how is p-value defined in terms of z statistic for
various one and two-tailed tests
When known: be able to perform hypothesis tests concerning using decision rule in
terms of
o
o
o
When unknown: be able to perform hypothesis tests concerning using decision rule
in terms of
o
o
o
sample mean x
z-statistic
p value
sample mean x
t-statistic
p value
Know how to use TI calculator’s statistical testing functions for hypothesis tests
comparing 1 and 2
o when 1 and 2 known
o when 1 and 2 unknown but assumed to be equal
o when 1 and 2 unknown and possibly not equal
Simple Linear Regression (3 hours)
Recognize bivariate data
Use given formulas to compute
o
o
The sample regression equation (least squares line)
The sample coefficient of determination and the correlation coefficient
Interpreting your results