Elementary Statistics
Homework # 8 Solutions
Section 5-3 pgs. 210-212: #1-18
Fall 2010
On Blackboard there are graded assignments A thru C. Assignments A and B are problems selected from
the textbook. Assignment C contains additional questions dealing wit
Elementary Statistics
Homework # 18 Solutions
Fall 2010
1) An educator wants to see how the number of absences for any student in her class is related to the
students final grade. The data obtained from a sample (in the file Absences and Final Grades.xlsx
Elementary Statistics
Homework # 10 Solutions
Section 6-2 pgs. 269-272: #17-20, 27-29, 32-36
Fall 2010
On Blackboard there are graded assignments A thru I. Assignments A, C, E and G involve numerical
computations for confidence intervals. Assignments B, D
I am going to run a 10K race. For my age group the data suggests finishing times are
normally distributed with a mean of 58 minutes and a standard deviation of 12 minutes.
I want to find somebody to partner with for the race. I would like to find somebody
Elementary Statistics
Homework # 5
Section 3-2 pgs. 99-101: #6-11, 14-16
Fall 2010
Section 3-3 pgs. 107-109: #3-22
Section 3-4 pgs. 115-117: #3-16
.
Section 3-5 pgs. 125-126: #7-20
5) You bought a new set of four tires from a manufacturer that
just announ
Elementary Statistics
Homework # 11 Solutions
Section 6-2 pgs. 269-272: #21-24, 30-31
Spring 2011
Section 6-3 pgs. 281-283: #9-12, 21-24
On Blackboard there are graded assignments A thru F. Assignment A involves sample size calculations for
proportions. A
Elementary Statistics
Homework # 16 Solutions
Fall 2010
1 - 2) In 1995, 24.8% of 550 white adults surveyed reported that they smoked cigarettes, while 25.7% of
the 550 black adults were smokers. Use statcrunch to create a 95% confidence interval for the d
Elementary Statistics
Homework #2 Solutions
Spring 2011
Section 2-2 page 32: #5-12
NOTE FOR THE CUMULATIVE FREQUENCY DISTRIBUTIONS THE SOLUTIONS SHOWN HERE NEEDED A
COLUMN TO SHOW HOW THE VALUES WERE BEING CUMULATIVELY ADDED. AS THEY DESCRIBE IN THE
TEXT,
Albany College of Pharmacy and Health Sciences
MAT145 Elementary Statistics
Fall 2010 Exam III
Professor M. Racz
Wednesday, December 1, 2010
Print Your Name _
Sign Your Name _
Submitted with Honor
There are 100 points on this exam. Answers to the multiple
Elementary Statistics
Homework # 17 Solutions
Section 9-2 pgs. 443-445: #1-4, 8-12
Fall 2010
1) Use the data from Problem #14 in Section 9-3 on page 462. These data are in
the file Section 9-3 #14 Tree Circumference and Height.xlsx. Peform a simple
linear
For each of these two problems sketch a box-plot using the line with the units indicated
1) A survey of 48 major universities asked what percentage of incoming freshman usually graduate in 4
years. The data has the following summary statistics:
| % on tim
Elementary Statistics
Homework #4 Solutions
Spring 2011
For each of these two problems sketch a box-plot using the line with the units indicated
1) A survey of 48 major universities asked what percentage of incoming freshman usually graduate in 4
years. T
Elementary Statistics
Homework # 17
Section 9-2 pgs. 443-445: #1-4, 8-12
Spring 2011
1) Use the data from Problem #14 in Section 9-3 on page 462. These data are in
the file Section 9-3 #14 Tree Circumference and Height.xlsx. Peform a simple
linear regress
Albany College of Pharmacy and Health Sciences
MAT145 Elementary Statistics
Spring 2011 Exam I
Professor M. Racz
Wednesday, February 16, 2011
Print Your Name _
Sign Your Name _
Submitted with Honor
There are 100 points on this exam. Answers to the multipl
Section 1.1-1.2
Population- the complete collection of all elements to be studied. The collection is complete in the sense that it
includes all subjects to be studied
Sample- a subcollection of members selected from part of a population
Parameter- a me
Elementary Statistics
Homework # 2 Solutions
Fall 2010
There are 14 problems on Blackboard with questions on topics in textbook sections 2-2 thru 2-4. For
problems 5 and 6, you need to interpret a histogram and relative frequency histogram created in
stat
Math Concepts Exam III
I submit the test with honor.
Name (print) _
Section _
Se 1: Cheng 9:00, Se2: Fan 10:00
Se 3: Cheng 11:00, Se 4: Fan 11:00
Se 5: Cheng 1:00
Signature _
Directions: There are 33 multiple choice problems, 3 points each, in the test. I
Elementary Statistics
Homework # 12 Solutions
Section 6-3 pgs. 281-284: #13-16, 25-26
Spring 2011
Section 6-4 pgs. 294-297: #1-10, 13-22
1) Software analysis of the salaries of a random sample of 288 Nevada teachers produced the confidence
interval shown
Albany College of Pharmacy and Health Sciences
MAT145 Elementary Statistics
Spring 2010 Exam II
Professor M. Racz
Wednesday, March 23, 2011
Print Your Name _
Sign Your Name _
Submitted with Honor
There are 100 points on this exam. Answers to the multiple
Elementary Statistics
Homework # 10 Solutions
Section 6-2 pgs. 269-272: #17-20, 27-29, 32-36
Spring 2011
On Blackboard there are graded assignments A thru I. Assignments A, C, E and G involve numerical
computations for confidence intervals. Assignments B,
Step 1: State null and alternative hypotheses
Define the variable(s) you are using
Make sure the alternative
,>,<
reflects the language in the problem
Make sure the hypotheses DO NOT include statements about the sample
data
Step 2: Compute the test st
Elementary Statistics
Homework # 16 Solutions
Section 8-4 pgs. 405-406: #5a, 6a, 7a, 8b, 9b
Spring 2011
8b
9b
Section 10-3 pgs. 515-519: #7-14
1) A randomized trial is run to compare two competing medications for peripheral vascular disease. The
One of th
Elementary Statistics
Homework # 11 Solutions
Section 6-2 pgs. 269-272: #21-24, 30-31
Fall 2010
Section 6-3 pgs. 281-283: #9-12, 21-24
On Blackboard there are graded assignments A thru F. Assignment A involves sample size calculations for
proportions. Ass
Elementary Statistics
Exam #3
April 21, 2010
Spring 2010
Name_
Answers to questions 1-11 go on the Scantron sheet
1-11) Multiple Choice 6 points each
1) Consider a right-tailed test with n = 8 and test statistic t = 2.142. If Table A-3 is used to find
the
Albany College of Pharmacy and Health Sciences
MAT145 Elementary Statistics
Spring 2011 Exam III
Professor M. Racz
Wednesday, April 20, 2011
Print Your Name _
Sign Your Name _
Submitted with Honor
There are 100 points on this exam. Answers to the multiple