Question

A) When is it appropriate to conduct a one sample
t-test?

B)What is the formula for a one sample t-test?

C)What is the main difference between the formula for a z-test
and the formula for a one sample t-test?

D)If p > α then what should you do?

Answer #1

What is the difference between a One sample
t-test, Unpooled t-test, Pooled
t-test, Paired t-test, and Mann
Whitney U test? How do you know when to use each test?

discuss the differences between a one-sample z-test, one-sample
t-test, the independent samples t-test and the dependent samples
t-test. Specifically, under what circumstances would you conduct
each test and what type of information comes from a known/defined
population versus your sample data?

when is it appropriate to do a one-tailed test when performing a
T-test?
a) when you want to make it easier to find a significant
result
b) when you want to make it more difficult to find a
significant result
c) when you have no hypothesis as to whether or not the
distribution that you are testing is greater than or less than the
standard score
d) when you do have a hypothesis as to whether or not the
distribution...

A two means t-test is appropriate when ____
A. the value for ? is known
B. the mean for a sample is compared to a known population
mean
C. one sample is used to test a hypothesis about one
population
D. there are two separate samples containing different
subjects

Do people send less text messages as they get older? A.
One-Sample T-Test B. Two-Sample T-Test C. Chi-Squared Goodness
of Fit Test D. Regression E. One-Way ANOVA Test F. One-Sample
Proportion Z-Test G. Chi-Squared Test for Two-Way Tables H.
Paired T-Test

In the following studies, state whether the one-sample
t test is an appropriate test statistic to analyze data.
If not, then explain why it is not appropriate.
(a) a study testing whether night-shift workers sleep the
recommended 8 hours per day
a one-sample t-test is appropriatea OR
one-sample t-test is not appropriate because a specific
standard or criteria is not identified
(b) a study measuring differences in attitudes about morality
among people who self-identify as liberal or conservative
a one-sample...

1. When conducting a t test for differences between means,
increasing sample size impacts the
a. standard deviation of the sampling distribution
b. degrees of freedom
c. t score
d. all of the above
2. In terms of finding importance vs. statistics
a. researchers can analyze importance as well as
significance
b. there is no difference between importance and
significance
c. the distinction is entirely dependent upon data
d. researchers cannot formally assess importance
3. When finding significance involving two...

Conduct an independent sample t-test (alpha= .05) in Excel to
determine whether there is a significant difference in the age of
offenders at prison admissions between White and Black offenders.
For this t-test, assume that the variances of the two groups are
equal. In your summary, please discuss the null hypothesis,
alternative hypothesis, the result of this hypothesis test, and
interpret the result.
t-Test: Two-Sample Assuming Equal Variances
White
Black
Mean
235.5714286
199.164557
Variance
44025.35714
87049.21616
Observations
21
79
Pooled...

1. Which of the following is a major difference between a
hypothesis test with a t statistic and the test with a z-score?
a.
You must know the population standard deviation for the z-score
but not for the t statistic.
b.
You use the normal distribution table to find critical values
for t but not for z.
c.
You must know the population median for the z-score but not for
the t statistic.
d.
There are no major differences between...

Decide and state whether a one-sample z test, a two- sample z
test, or a t test is appropriate. Whichever test you choose, state
your null hypothesis, then obtain a P -value and formulate a valid
conclusion.
A coin is tossed 1,000 times, landing heads up 483 times. Is the
coin fair?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 7 minutes ago

asked 31 minutes ago

asked 34 minutes ago

asked 39 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago