Question

How do I write a traditional sentence to explain the meaning of
the test statistic. My test statistic is **Z=-0.1226**
for two proportion.

Answer #1

Explain how the term mentor has changed meaning over
time. Do you think the more traditional meaning or more recent
meaning is a more fitting term? Why?

I am trying to figure out how to find the test statistic using
Excel. I understand the formula- that I need to use parameter 'p'
and 'normal distribution' ….z= sample proportion and minus the
'population portion' then we divide p*q and divide n -sample size.
I understand how to populate the data in the formula. I just can't
figure out how to solve this using Excel. (my only option with my
class) I need step by step directions if possible....

What is the random variable in a hypothesis test of two means?
[1 sentence]
Explain when you use a t-test instead of a z-test statistic for
a hypothesis test of two means. [1 sentence]
What are the requirements to perform a hypothesis test of two
proportions? [3 requirements]
Give an example of paired data set. [1 sentence]

What is the meaning of this sentence: Scarcity as
faced by an individual: explain how individuals are constrained by
their income and prices they face.
Please can someone explain it in more detail? Thank you

Write out formula for your z-statistic, verify that the method
is appropriate and explain/show the steps you use to get your value
of z
B.Explain (possibly with a sentence) how you obtained your
p-value, and then explain how your p-value led you to your final
conclusion.

What do I do when my Welch test and Mann-Whitney tests have
conflicting p-values/ interpretations?
Independent Samples T-Test
Test
Statistic
df
p
Lead_Measured_(mg/kg)
Student
-2.048
90.000
0.044
Welch
-2.048
64.477
0.045
Mann-Whitney
920.500
0.285
Table 3. A Student, Welch, and Mann-Whitney t-test.
This is what I have collected from my data, and I do not know
how to properly interpret it.
My confidence level is 95% with and alpha value of 5%.

How do I write a review of Literature on substance abuse. Its my
first time and I'm having problems getting started

Which hypothesis test do I use for this statement?
It is believed that the blue team is 3 inches taller than the
red team. (for my data, in one column i have their heights and team
color in another column)
For my null and alternative hypothesis, how do I find those?
I was thinking take the difference of the means since we are
testing whether one team is 3 inches taller? For example, null is
u1-u2= 0, alternative is u1-u2=...

Write a sentence interpreting the N number that goes along with
the correlation statistic for your two variables. It should be the
n that is in the same box as the Pearson r correlation statistic.
Make sure your sentence shows that you know what the number means.
Do not use the word “cases”.
Correlations
REC_FAMILY16
REC_HRS1
REC_FAMILY16
Pearson
Correlation
1
.006
Sig. (2-tailed)
.834
N
1915
1091
REC_HRS1
Pearson
Correlation
.006
1
Sig. (2-tailed)
.834
N
1091
1091

What conditions must be met to test a hypothesis about a
population proportion?
What test statistic would we use when comparing two population
proportions?
What test statistic would we use when comparing observed vs.
expected frequencies?
If my degrees of freedom were 7 and I am comparing observed
and expected frequencies at a 0.01 level of significance. What
would my critical value be?

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