When reading the article alcohol consumption among first-time mothers it is clear to
understand the purpose of the study. The researchers had set out to explore the association
between alcohol consumption, before and during pregnancy, and the risk of pret
To discuss the difference between null and alternate hypothesis I must first describe the two.
First null hypothesis can be described as a statement of no effect or no difference. An alternative
hypothesis is what we are trying to prove with the test/stud
I decided to use the article Napping on the night shift: A two-Hospital implementation
project for my research paper. I choose this because I am an LPN and know many nurses who
have or work night shifts. As the article mentions someone deprived of sleep m
To conclude my reading of the article Alcohol consumption among first-time mothers
and the risk or preterm birth: a cohort study; I will be discussing the results. With all the data
the conclusion was that there is not concrete link between drinking and p
When reading the article alcohol consumption among first-time mothers it is clear to
understand the purpose of the study. The researchers had set out to explore the association
between alcohol consumption, before and during pregnancy, and the risk of pret
When reading this article, it seemed to me that the study was more of a descriptive statistic. I
believe this to be so for a couple different reasons. The main reason being that when dealing
with descriptive statistics you cannot make generalizations. Thi
Peer review:
The article I chose was Geiger-Brown, J., et. al. (2016). Napping on the
night shift: A two hospital implementation project. American Journal of
Nursing, 116 (5), 26-33.
Section 2 part E: Identify the data analysis methods used and
explain wh
When talking of confidence interval we are talking about a range of values that are so specific
that there is a good probability that the value of the parameter is within it. Parts of gambling
relate to this while other parts do not. I firmly believe that
Napping during night shifts, a positive notion?
By: Elodie Davis
Napping on the Night Shift: A Two-Hospital Implementation was written by Jeanne
Geiger-Brown. At the time of this study, she was an associate professor in the Department of
Family and Commun
Statistics, what does that mean to me? Well over the last eight weeks I have learned a
lot about this topic; more then I thought I would. To start, I thought I had a pretty good
knowledge of statistics but I now realize that was actually not a lot. My und
5.2 Question 10
Degree of Freedom t-Chart
is found on the degree of freedom t-chart a = 95% Half of 5% = 2.5% or 97.5%
The 2 in the formula is squared.
Make sure that you put the equation in parentheses.
(46.2 40.9) + 2.131*(6.42/23) + (13.52/16) =
Themainpointsofthesurveyarethefollowing:
Teenagers who spend an extra hour a day risk performing two grades worse in
exams
Physical activity had no effect on academic performance
Pupils doing an extra hour of daily homework and reading scored better
There
PSY 223 Milestone Two Worksheet
Review the critical elements that must be addressed in the final project. Use this worksheet to
create Milestone Two.
Points to remember:
A sample is a subset of a population.
A random sample is a type of sample. Every elem
In one study of smokers who tried to quit smoking with nicotine patch therapy, 39 were smoking
one year after the treatment and 32 were not smoking one year after the treatment (based on data
from High-Dose Nicotine Patch Therapy, by Dale et al., Journal
Running head: DATA ANALYSIS
1
Data Analysis
Rose Booker
Southern New Hampshire University
PSY-223
Professor Zummuna Davis
April 23, 2017
DATA ANALYSIS
2
Data Analysis
Addictions grow at a rapid rate, more and more people are getting addicted to alcohol,
d
6 2 Problem Set
Question 1
The variables are not linear.
Question 3
To use a TI-83/84, use this instructions:
STAT Enter L1 2, 6, 6, 7, 9 L2 8, 2, 6, 9, 5
STAT Arrow Right (Calc) Linear Regression (4) Enter
The coefficient of correlation is the r value, n
2. Simple Random Sample. An important element of this chapter is the concept of a simple ransom
sample.
A. What is a simple random sample?
A simple random sample is a sample size n is sample in which each set of n elements in the population
has an equal c
Complete the following chapter review exercise out of your textbook:
Exercises 18 (p. 284)
In these exercises, you will think critically about sampling distributions and judge the
reasonableness of several example scenarios.
Exercise 19 (p. 285)
In this e
Research 1 week 2
2-1 Exercise: Frequency Tables and Histograms
This homework assignment will help familiarize you with Microsoft Excel software creating
visual displays.
Using Excel, complete the following exercises out of your textbook:
Exercise 11: Wei
7 2 Problem Set
Question 1
Plug x into the equation and round to the nearest tenth (one decimal place).
4.302(20) 3.293 = 82.747 = 82.7
Question 2
Question 3
B0 = y-intercept
B1 = slope
se = Estimate of error standard deviation
sb1= Standard error of slop
8 - 2 Problem Set
Question 1
Expected Outcome = n * probability
Multiply n by the decimal for each data set
Question 2
c. The critical value for = .05, degrees of freedom = 3, c = 7.815
d.
If the test statistic x0 is less than or equal () to the critical
PSY 223 Milestone Three Worksheet
Review the critical elements that must be addressed in the final project. Use this worksheet to
create Milestone Three. A hypothesis is a position about research outcomes. In this assignment,
you will describe two hypothe
3.21
Laptop Computers
A survey conducted in May of 2010 asked 2252 adults in the US Do you own a laptop
computer? The number saying yes was 1238. What is the best estimate for the
proportion of US adults owning a laptop computer? Give notation for the qua
2.131
Audience Scores on Rotten Tomatoes
Audience scores (on a scale from 1 to 100) on the Rotten Tomatoes website for all
movies that came out of Hollywood in 2011 have a five number summary
of (24,49,61,77,93). (These data are in the variable AudienceSc
1.12
Countries of the World
Information about the world's countries is given in AllCountries, introduced in
Data 1.2. You can find a description of the variables in Appendix B. For the full
dataset:
(a)
Indicate which of the variables are quantitative and
2.16
What Type of Cell Phone?
A 2012 survey11 examined cell phone ownership by US adults. The results of the survey
are shown in Table 2.7.
Table 2.7
Frequencies in cell phone ownership
Cell Phone Owned
Frequency
Android smartphone
458
iPhone smartphone
4
4.16
Pesticides and ADHD
Are children with higher exposure to pesticides more likely to develop ADHD (attentiondeficit/hyperactivity disorder)? In a recent study, authors measured levels of urinary
dialkyl phosphate (DAP, a common pesticide) concentration
Running head: ONE HOUR EXTRA SCREEN TIME
1
Extra Screen Time
Vannessa Muniz, April 10, 2017
Southern New Hampshire University
ONE HOUR EXTRA SCREEN TIME
2
Extra Screen Time
Teenagers between the ages of 14 and 15 are at risk performing 2 grades worse in e
For the exercises 4.1 and 4.3. I computed the number of seconds of
53,52,75,62,68,58,49,49 that the students participated in an experiment that tested their ability to
determine when one minute had passed. On average a students perception of time in one m