Dacloc Brandon Nguyen Section 2C
Biostats 100A Section 8.2 Homework
#5, 7, 9, 15, 17, 21- Inferences About Two Proportions
Assume that you plan to use a significance level of = 0.05 to test the claim that p 1 = p2. Use the
given sample sizes a
Biostatistics 100-A - Lab 8
Use Stata to calculate a chi-square test for variance.
Handle paired observations in Stata
Handle paired observations in MS Excel
Use Stat to calculate a t-test for paired data
Use MS Excel to calculate a p
Biostatistics 100-A - Lab 4
Read a dataset from your flash drive
Save a dataset for later use
Save and print graphs
Get summary statistics on variables
Check for normality using qnorm plots
Get summary statistics on
Psych 85 Introduction to Cognitive Science Winter 2014 Midterm Review
NOTE: This is NOT a comprehensive list of topics and terms for the exam. To do well, please make sure you are
familiar with all the readings and lecture material. It may be useful to te
Low birth weight
Normal Birth weight
N1 = 258 subjects
N2= 220 subjects
Mean IQ: 95.5 (X1) xbar
Mean IQ: 104.9 (X2) xbar
standard deviation: 14.1
standard deviation: 14.1
Objective: To determine if IQ
What is probability person has a blood type? 1
disjoint and should occur with
joint frequency is
based on two
the joint pr
1)Please provide all the code needed for this lab.
2)Summarize the patients systolic blood pressure by type of shock.
There are non-Shock, hypovolemic shock, Cardiogenic Shock, Bacterial shock, Neurogenic
shock, and Other type of shock.
3)Plot a side-by-s
1)State the hypothesis and alternative hypothesis for testing the claim that the procedure raises
blood pressure on the average equal to 145 or more.
a.Is this a one tail test or a two tail test? Left or right
2)Provide the test statis
Use the cholesterol variable from Data Set 1 in Appendix B (same data as Lab 5) and calculate a 95%
confidence interval for the population mean for both males and females. Does it appear that the
distribution for males and females cholesterol
1)For the depressreduced data, test the claim that the number of cases is a quarter of the whole
a.State the null hypothesis and alternative hypothesis.
b.State the p-value and provide the conclusion
1)Provide all codes for Lab 5
2)What distribution does X has? Provide the graph you generated to show the distribution of X.
3)What distribution does xbar follows? This is an application of what theorem?
4)Plot a histogram of xbar. What d
biostat100A chapter 1
Study online at quizlet.com/_qs3hn
we subdivide the population into at least two
difference subgroups or strata that share the
same characteristics (such as gender or age
bracket) then we draw a sample from