KNOWLEDGE:DEFINE descriptive and inferential statistics, discrete and continuous random variables, random sample, population parameter, qualitative and quantitative data, elementary probability concepts, range, null and alternative hypotheses, significance level, critical value, decision rule, rejection and acceptance regions, and test statistic
STATE why samples are used to infer information about a population
RECOGNIZE the limitations of statistical data
LIST properties of distributions: binomial, normal, t-distribution, Poisson, sampling, chi-square
DESCRIBE a data set with a frequency distribution, a relative frequency distribution, and a cumulative frequency distribution, the sampling distribution
COMPREHENSION:
The student will
FIND measures of central tendency, variation, probabilities of simple and compound events, conditional probability, probabilities for the binomial, normal, t and sampling distributions, linear correlation and regression analysis
CONVERT raw scores to z scores
ACQUIRE understanding of simple random sampling, cluster, stratified, sequential, systematic sampling
STATE the central limit theorem and explain its importance for making statistical inferences
ILLUSTRATE a sampling distribution on a statistics computing system
EXPLAIN the advantages and disadvantages of using a frequency distribution to describe data
DISTINGUISH between discrete and continuous random variables;
descriptive and inferential statistics;
simple random, stratified, systematic, cluster, and sequential sampling techniques
INTERPRET measures for raw and grouped data for samples and populations;
central tendency: mean, median, mode;
variation: standard deviation, variance, quartiles, percentiles;
computer output for sample statistics;
computer output for estimation and hypothesis testing;
computer output for histograms, frequency polygons, ogives, boxplots, dotplots, pie charts, stem and leaf graphs;
a confidence interval for the mean of a population
a confidence interval for a population proportion;
conclusions of hypothesis testing
ESTIMATE confidence intervals for means of populations,
population parameters using sampling concepts
INFER conclusions from hypothesis testing procedures:
one-sample and two-sample tests;
analysis of variance test; nonparametric tests
PREDICT & DEMONSTRATE the effects of a change of sample size or confidence level on the length of the confidence
interval
APPLICATION:
The student will
DEMONSTRATE writing, computing, critical thinking and decision making skills using statistical analysis
COMPUTE mean, median, mode, standard deviation, variance and the z scores for a set of data;
probabilities for simple and compound events;
the linear correlation coefficient by using a scientific calculator and statistical computer software;
linear regression analysis;
test statistics for the normal, binomial, sampling, ANOVA and chi-square distributions;
the maximum error with confidence;
the sample size necessary to attain a given level of confidence that the error does not exceed a given magnitude;
standard error of the mean;
a p-value for a test for the mean and proportion;
a one-way and two-way ANOVA test statistic on a computer and interpret the results;
nonparametric tests: Sign, Wilcoxon-Mann-Whitney rank sum, …
DEVELOP an understanding of sampling concepts;
an understanding of statistical process control tools
USE the computer to generate a random numbers table and the central limit theorem;
the calculator and computer to compute statistical measures
IDENTIFY random variables; distributions
DIFFERENTIATE
among different types of variables and different types of measurement
ANALYSIS:
The student will
DISTINGUISH between probability distributions
IDENTIFY TYPE I and TYPE II errors
PLOT the scatter diagram for paired data;
the box and whisker graph, stem and leaf graph, histogram, frequency polygon, pie chart, bar chart, ogive, quality control charts;
quality control graphs for variable and attribute data using a computer and interpret the meaning
SYNTHESIS:
The student will
EXPLAIN hypothesis testing procedures for one-sample and two-samples
WRITE interpretations of data and graphs
GENERATE random sampling on a statistical computer program
EVALUATION:
The student will
DESCRIBE statistical graphs and data with integrity