Append the Week 2 Business Research Project Part 1 paper with the following:
Each team member should:
Find three articles relevant to your research problem with a minimum of one being peerreviewed. Sources of non-peer reviewed articles may be trade journa

A random sample of 15 observations from the first population revealed a sample mean of
350 and a sample standard deviation of 12. A random sample of 17 observations from the
second population revealed a sample mean of 342 and a sample standard deviation o

Page 17
MERRILL LYNCH recently completed a study of online investment portfolios for a sample of
clients. For the 70 participants in the study, organize these data into a frequency distribution.
(See Exercise 43 and LO2-3.)
LEARNING OBJECTIVES
When you ha

1.
Solution:
a)
Ho: There is no difference in the mean rate of return for three types of stock.
Ha: there is difference in the mean rate of return for three types of stock.
Calculation:
utility(X1)
retail(X2)
banking(X3)
14.3
18.1
17.8
17.3
19.5
11.5
12
1

A research firm conducted a survey to determine the mean amount steady smokers spend on cigarettes
during a week. They found the distribution of amounts spent per week followed the normal distribution
with a population standard deviation of $5. A sample o

If 95 percent of the values are below x, then the area between x and the mean is 0.4500. Search the
body of Appendix B.3 for the area closest to 0.4500. It is 0.4505. Move to the margins from this value to
find z is 1.65. So 95 percent are less than 1.65

The F Distribution is a prospect distribution which was branded after Sir Ronald Fisher who was a
founder of present-day statistics. This distribution can be used to assess if two samples are from
populations that have equivalent variances. Further, the F

Power
GENVOYA is a prescription medicine used to treat HIV-1 in people 12 years and older. It can be used in
people who are either:
Starting HIV-1 treatment and have never taken HIV-1 medicines before - OR -
Replacing their current HIV-1 medicines and who

Correlation analysis is a method used to study the strength of a relationship between two constant
variables like height and weight. Correlation analysis is used when a researcher wants to know if there is
any correlation between variables. Contrary to po

A brief definition of dependent and independent samples would be:
dependent samples are paired measurements for one set of items
independent samples are measurements made on two different sets of items
When performing a hypothesis test using two random sa

6 steps for testing a hypothesis
Testing a hypothesis involves six steps of procedure to follow and either prove or not approve your
statement.
The first step is finding a null hypothesis which is your statement about the population and then finding
an al

According to the text, correlation analysis is a group of techniques to measure the relationship between
two variables. I find that definitions become easier when we relate them to what we actually do in life.
Although I deal with statistics in certain ar

Independent samples are two or more samples that are selected from a population, whether it is the
same or different population, and do not have an effect on each other. In other words, one sample's
outcome is alleged to be unassociated with the outcomes

The chi-squared test for independence is used when you have two categorical variables from the same
population. It's used to decide if there is a link between the two variables. "The chi-squared test is a
statistical hypothesis test where the sampling dis

"The Chi-square statistic is a non-parametric tool designed to analyze group differences when the
dependent variable is measured at a nominal level" (McHugh, 2013, para. 1). Further, chi square does
not mandate that there is equality of variances among th

The correlation coefficient is a measure which is used to determine the degree to which the movement
of two variables are related. However, the correlation only measures the linear relationship between the
variables in the study being conducted. In additi

I should clarify something. My last post about Hypothesis testing should have been titled " The
difference Between Null and Alternative Hypothesis." Sorry about any confusion.
"Hypothesis testing is a process based on sample evidence and probability theor

"Hypothesis testing involves the careful building of two statements, the null hypothesis and the
alternative hypothesis" (about,2016). A null hypothesis means there will be no effect on an experiment.
Okay, this makes sense. Null means no or none. The nul

There are two types of dependent samples. First there are those dependent samples that are
characterized by a measurement, then there is an intervention, and another measurement afterwards.
This is considered a before and after study. For instance, let us

It is very challenging for some individuals to properly construct a hypothesis because it entails
incorporating a combination of critical and strategic thinking skills in order to develop a suitable
hypothesis to test. Like anything else, practice makes i