Course MTH 1210
Homework #6 (answers)
(Sampling distribution of sample means)
Apr 410
Use the MS Excel program Three_distributions.xls, sheet 3; see handout #9
5.3.1, pg. 139, textbook. The National Health and Nutrition Examination Survey of 1988-1994
(NH
Apr 2510
HYPOTHESIS TESTING: ILLUSTRATIVE
EXAMPLES INVOLVING t DISTRIBUTION
#15b
As we have already noted, the population variance is usually unknown in actual
situations involving statistical inference about a population mean. When sampling is from
a nor
MTH 1210 Biostatistics
Apr 2110
Homework #13 (students version)
(Hypothesis Testing)
See the handouts #15, 15a, 15b. Use the MS Excel program
Hypothesis_Testing_for_the_Mean.xls or the calculator TI-83plus (or equivalent); see
also other problems in the t
Additional problems_3 on statistical distributions.doc
/ Consider at first handouts #6b, 6a, the file
/ Binomial Probability Distribution.doc,
/ and HW #4 (part 1); then - handout #7
/ and HW #4 (part 2); then - handout #8
/ and HW #5.
Apr 410
Sampling Di
MTH 1210 Biostatistics
Apr 1809
Homework #11 (answers)
(Sampling Distribution of the Sample Proportion)
Use the handout #12 and MS Excel program Three_distributions.xls, sheet 3 (see the textbook
pgs 148, 149, 183)
Below:
is a sample proportion for an ar
MTH 1210 Biostatistics
Apr 1909
Homework #12
(Sampling Distribution of the Difference between Two Sample Proportions)
Use the handout #13 and MS Excel program Three_distributions.xls, sheet 3 (see the textbook
pg. 151)
5.6.1. According to the 2000 US Cens
Course MTH 1210
Homework #4 (solutions and answers)
(Binomial and Poisson Distributions)
Mar 1610
Use the MS Excel program Three_distributions.xls
Binomial Probability Experiment is an experiment that is made up of repeated trials of
the same basic experi
Additional problems_2 on statistical distributions.doc
/ Consider at first handouts #6b, 6a, the file
/ Binomial Probability Distribution.doc,
/ and HW #4 (part 1); then - handout #7
/ and HW #4 (part 2); then - handout #8
/ and HW #5.
Apr 410
Normal dist
SIMPLE RANDOM SAMPLING_stud.doc
Jan 2510
THE SIMPLE RANDOM SAMPLE
DEFINITION. Statistical inference is a procedure by which we reach a conclusion
about a population on the basis of the information contained in a sample that has
been drawn from that popula
INTRODUCTION TO STATISTICS
Jan 2509
[1] BIOSTATISTICS. A foundation for Analysis in the Health Sciences, eights
edition, by Wayne W. Daniel; John Wiley & Sons, Inc. ISBN: 0-471-45654-3
WIE ISBN: 0-471-45232-7
[2] Elementary Statistics by Robert Johnson, 3
Problems for handout_14.doc
/ See Biostatistics textbook, pg. 189
Use the program Determination of sample size.xls, sheet 1 and handout_14 to solve the
following problems.
6.7.2. The director of the rabies control section in a city health department wishe
Sampling distribution of sample means and t distribution.xls
This sheet illustrates the example
on the pg. 2 of the handout #9
Prof. M.Vaisfeld
May 9'09
Table 1. The Samples of Size n = 2 Derived from the Population cfw_2, 4, 6, 8, 10 of Size N = 5.
Sampl
Unit 1 Review
Remember: The test covers all material from the in-class lectures, homework, online lessons
and online labs.
1.
Find the answers to the following and round to 2 decimal places:
a) 75.45 12
b) 48,000 26
2.
Find the answers to the following an
St. Johns University
Department of Mathematics and Computer Science
Course MTH 1210
Mar 1509
Homework #3 (answers)
PROBLE
MS INVOLVING BAYES FORMULA
P(Bi)*P(A|Bi)
P(Bi)*P(A|Bi)
P(Bi)*P(A|Bi)
P(Bi|A) = - = - = -P(A)
k
k
P(Bi)*P(A|Bi)
P(ABi)
i =1
(5.9)
i
St. Johns University
Department of Mathematics and Computer Science
Course MTH 1210
Homework #4
(Binomial and Poisson Distributions)
Mar 2508
Use the MS Excel program Three_distributions.xls
1. Drug Effectiveness. A new drug curies 70% of the people takin
Course MTH 1210
Homework #5 (answers)
(The Normal Distribution)
Mar 2409
Use the MS Excel program Three_distributions.xls, sheet 3
1. A certain type of light bulb has an average life of 500 hr, with a standard deviation of 100 hr.
The length of life of th
Course MTH 1210
Apr 710
Homework #7 (answers)
(Confidence intervals for a population mean with z-statistic)
Use MS Excel program Three_distributions.xls, sheet 3 and the formula for the confidence
interval [see handout #10]
_
x* z(1 /2) x_mean
or
_
[ x* z
Course MTH 1210
Homework #7 (answers)
(Confidence intervals)
Apr 1609
Use MS Excel program Three_distributions.xls, sheet 3 and the formula for the confidence
interval [see handout #10]
_
x* z(1 /2) x_mean
or
_
_
*
[ x z(1 /2)x_mean , x + z(1 /2)x_mean ]
Course MTH 1210
Apr 1609
Homework #8 (answers)
(Confidence intervals for a population mean with t statistic)
Use MS Excel program Sampling distribution of sample means.xls, sheet 3 (block of cells I6
L9) and the formula for the confidence interval (see H
Course MTH 1210
May 1709
Homework #9 (answers)
(Sampling Distribution of the Differences between Two Sample means)
Use handout #11 and MS Excel programs: Three_distributions.xls, sheet 3, Sampling
distribution
of
sample
means
and
t
distribution.xls,
sheet
Course MTH 1210
May 1709
Homework #10 (answers)
(Sampling Distribution of the Differences between Two Sample means)
Use handout #11 and MS Excel programs: Three_distributions.xls, sheet 3, Sampling
distribution
of
sample
means
and
t
distribution.xls,
shee
MTH 1210 Biostatistics
Apr 2809
Homework #14
(Hypothesis Testing for the Difference between Two Population Means)
See the handouts #15, 15a, 15b.
Use
the
MS
Excel
program
Hypothesis_Testing_for_ the_Difference_between_Two_Population_Means.xls.
Solving the
THE SUMMATION NOTATION
01/31/10
In statistics and in other math courses the Greek capital letter (sigma) is used as a
summation symbol which indicates the sum of related terms. For example,
5
i = 1 + 2 + 3 + 4 + 5 = 15
i =1
means the sum of the integers
St. Johns University
Department of Mathematics and Computer Science
Course MTH 1210
SYLLABUS (Spring 2010)
TEXT: BIOSTATISTICS (A foundation for Analysis in the Health Sciences),
9th edition, by Wayne W. Daniel; John Wiley & Sons, Inc. (ISBN # 978 0 - 470
2.2 Word Problems Worksheet
1.
The first stage of a rocket burns 28 seconds longer than the second stage. If
the total burning time for both stages is 152 seconds, how long does each
stage burn?
2.
In a student election, 584 students voted for one or the
2.2 Solving Word Problems
Word Problems Worksheet (Day 2)
1.
The first stage of a rocket burns 28 seconds longer than the second stage. If
the total burning time for both stages is 152 seconds, how long does each
stage burn?
Possible Solution:
Let x secon
Unit 1 Lesson 5
2.5 Formulas and Their Applications
When we work with a formula, we usually have an equation with more than one variable.
Sometimes, we can make our work easier by rearranging a formula before substituting values.
For example, in the formu
Unit 2 Lesson 6
2.2 Solving Word Problems
SOLVING WORD PROBLEMS
1.
2.
3.
4.
Read the ENTIRE problem. What is being asked?
What is being asked? State a variable to represent the unknown(s), including any units.
Write an algebraic equation to represent the