Taniya Mathew
Sec 1 Kerima
October 6, 2014
1.
In October 2009, the results of a study on the nutrition and marketing of childrens cereal
was presented in Washington DC. The data used the study, Cereal f.a.c.t.s. Food Advertising to
Children and Teens Scor
Math 263: Excel Assignment 5(Probability) Deb Hughes Hallett January 2010 You must do the computer work for this assignment yourself, although you may certainly talk to other people. Answers which appear to be copied will be treated as an integrity violat
Math 263: Excel Assignment 1 Deb Hughes Hallett January 2010 Histograms 1. One of the determinants of medical care is the number of doctors available. In this problem you will construct and analyze the distribution of doctors worldwide using data gathered
04/10/14
Math 263: Excel Assignment 8 on Confidence Intervals
You must do the computer work for this assignment yourself, although you may certainly talk to
other people. Answers which appear to be copied will be treated as an integrity violation.
At the
Exam 1 solutions Math 263 (sect 9) Prof. Kennedy
Proble
1
2
3
4
total
m
20
32
30
28
100
1. For 219 hospital patients the length of their stay in the hospital (in days) was recorded. A
histogram is show above.
a. The median is approximately
A) 10.0
B ) 3.2
Math 263: Excel Assignment 2 Deb Hughes Hallett January 2010
Averages and weighted averages 1. One of the determinants of medical care is the number of doctors available. In this problem you will construct and analyze the distribution of doctors worldwide
Sample Exam 1 Math 263 (sect 9) Prof. Kennedy
1. In a statistics class with 136 students, the professor records how much money each
student has in their possession during the first class of the semester. The histogram
shown below represents the data she c
Chapter 7
1.
A)
B)
C)
2.
A)
B)
C)
We wish to determine whether there are differences in the average prices at two
supermarkets. We randomly pick six items to compare at the supermarkets. Which
procedure should we use?
Onesample t test.
Matchedpairs t pr
Spring 2010
Math 263
Deb Hughes Hallett
Math 263: Excel Assignment 6(Probability) Deb Hughes Hallett
You must do the computer work for this assignment yourself, although you may certainly talk to other people. Answers which appear to be copied will be tre
6.1: Confidence intervals
Use the following to answer questions 1 and 2:
A researcher plants 25 plots with a new variety of corn. The yield per acre follows a normal
distribution with an unknown mean of and a standard deviation of = 10 bushels per acre.
1
Taniya Mathew
Kerima Sec 1
September 22, 2014
ZScores, Means and Standard Deviations
1. US swimmer Michael Phelps, who won eight gold medals in the 2008 Olympic Games, has often
been compared with Mark Spitz, who won seven gold medals in swimming in the
Taniya Mathew
Kerima Sec 1
October 14, 2014
1.
Chinas one child per couple policy has been in effect since 1979. However, in rural areas
where couples particularly want a boy, families may be allowed to have two children if the first
one is a girl. Assume
Taniya Mathew
Sec 1 Kermia
Calculating the Population Parameters
(a) Find the number of Whites, Blacks, Hispanics among the candidates and put the
results in E2, F2, G2. The race of the candidates are listed in Column B as W, B, H.
You can count the numbe
Taniya Mathew
Kerima Sec 1
1.
Decide if UA wins more often at home. To do this, test whether the proportion of UA wins at
home is significantly greater than the proportion of UA wins away. Write out your reasoning in detail,
showing
the hypotheses:
i. H0:
Taniya Mathew
Kerima, Sec 1
9/8/2014
1. One of the determinants of medical care is the number of doctors available. In this problem you will
construct and analyze the distribution of doctors worldwide using data gathered by the United Nations
(UN) to cons
1 The 5 lessons that were learned from studying the structure and function of lysozyme are:

Proximity and orientation are very essential
The activesite residues usually regulate in order to allow the binding of the specific
substrate
The protein struc
Math 263: Excel Assignment 3
18 February 2014
ZScores, Means and Standard Deviations
1. US swimmer Michael Phelps, who won eight gold medals in the 2008 Olympic Games, has often been
compared with Mark Spitz, who won seven gold medals in swimming in the
Math 263: Excel Assignment 4
25 February 2014
The value of a business is thought to depend on its operating income (that is, the businesss income after
taxes, excluding the sale of assets like buildings or machinery). You will test this theory by looking
03/04/2014
Math 263: Excel Assignment 5(Probability)
You must do the computer work for this assignment yourself, although you may certainly talk to
other people. Answers which appear to be copied will be treated as an integrity violation.
1.
In October 20
04/01/14
Math 263: Excel Assignment 7(Sampling Distributions) New Haven Firefighters
You must do the computer work for this assignment yourself, although you may certainly talk to
other people. Answers which appear to be copied will be treated as an integ
Matthew Soden
D. Rockoff
Math 263
June 16, 2016
Written Homework #3
3.43: The first will produce more trustworthy results because design A is an
experiment, while design B is an observational study. By using 400 random women
as the sample any changes in c
Matthew Soden
D. Rockoff
Math 263
June 15, 2016
Homework #2
2.6:
a) The amount of calcium per day in diet and amount of vitamin A per day in
diet are both neither explanatory or response because the variables do not affect/
are not affected by each other.
Matthew Soden
Mr. Rockoff
Math 263
June 22, 2016
Excel #2
1.
American League wins at home
American League loses at home
National League loses at home
National League wins at home
160
102
130
139
2.
a) P(AL wins  AL home) = P(AL wins & AL home)/P(AL home)
3/25/14
Math 263: Excel Assignment 6(Probability)
You must do the computer work for this assignment yourself, although you may certainly talk to
other people. Answers which appear to be copied will be treated as an integrity violation.
1.
Chinas one child
Taniya Mathew
Kerima Sec 1
1.
At the start of the experiment, were the three groups, B, D, S comparable? Use ANOVA to
decide. Write out your reasoning clearly, showing the Excel printout and including
the hypotheses, H0: B = D = S
Ha: Not all of the group