Name:
Date:
Topic 2: Population and Sampling Distribution Excel Worksheet
Directions: Answer all questions and submit to instructor at the end of Topic 2
1 A. For a normal distribution that has a mean of 100, and a standard deviation of 8, determine
the Z
Name:
Date:
Topic 2: Population and Sampling Distribution Excel
Worksheet
Directions: Answer all questions and submit to instructor at the end of Topic 2
1 A. For a normal distribution that has a mean of 100, and a standard
deviation of 8, determine the Z
Name:
Date:
Topic One: Mean, Variance, and Standard Deviation
Please type your answer in the cell beside the question.
Please type you answer in the cell beside the question.
1. Identify the sampling technique being used. Every 20th patient that comes int
Timestamp
UntitledQuestion
Name:
Date:
Topic One: Mean, Variance, and Standard
Deviation
Please type your answer in the cell beside the question.
Please type you answer in the cell beside the question.
1. Identify the sampling technique being used. Every
Statistics exercises 11 and 16
Exercise: 11:
5. Yes, they were similar because the numbers for both groups types of feeding are
very close to the same. There is only between a 1 and 3 percent difference.
6. Marital status mode for both groups is married w
Name:
Date:
Population and Sampling
Distribution Excel
Worksheet
1 Directions:normal distribution that submit to instructor at the end of
A. For a Answer all questions and has a mean of
Module 2
100 and a standard deviation of 8. Determine the
Z-score for
EXERCISE 18
1. Assuming that the distribution is normal for weight relative to the
ideal and 99% of the male participants scored between (53.68,
64.64), where did 95% of the values for weight relative to the ideal
Name:
Date: 3/06/16
Topic One: Mean, Variance, and Standard Deviatio
Please type your answer in the cell beside the question.
Please type you answer in the cell beside the question.
1. Identify the sampling technique being used. Every 20th patient that co
NRS-362V 3-13-16
EXERCISE 18 Questions to be Graded
1. Assuming that the distribution is normal for weight relative to the ideal and 99% of the male
participants scored between (53.68, 64.64), where did 95% of the values for weight relative to
the ideal
Exercise 20
6. Assuming that the distribution of the preoperative CVLT Retrieval T scores is normal, the middle 68% of the
patients had T scores between what two values?
The preoperative CVLT Retrieval T score is 47.8(5.8)
47.8+5.8=53.6
47.8-5.8=42
Preope
Exercise 18
Week 2 Statistics
6. Assuming that the distribution of Mental Health scores for men is normal, where are 99% of the mens mental
health scores around the mean in this distribution? Round your answer to two decimal places.
Formula for determinin
Name:
Date:
Hypothesis Testing
Answer each question completely to recieve full credit
1. There is a new drug that is used to treat leukemia. The following data
represents the remission time in weeks for a random sample of 21
patients using the drug.
10
11
NRS-362V Statistics 3-6-2016
EXERCISE 11 Questions to be Graded
1. What demographic variables were measured at least at the interval level of measurement?
The demographic variables that were measured were age, income, length of labor, weeks to
return bac
Timestamp
UntitledQuestion
Name:
Date:
Topic One: Mean, Variance, and Standard
Deviation
Please type your answer in the cell beside the question.
Please type you answer in the cell beside the question.
1. Identify the sampling technique being used. Every
EXERCISE 11 Questions to be Graded
1.
What demographic variables were measured at least at the interval level of
measurement?
Age, Income, length of labor, return to work and number of hours worked
per week
2.
What statistics were used to describe the len
Name:
Date:
Topic 2: Population and Sampling
Distribution Excel Worksheet
Directions: Answer all questions and submit to instructor at the end of Topic 2
1 A. For a normal distribution that has a mean of 100,
and a standard deviation of 8, determine the Z
Now that you are familiar with the basic concepts of statistics, what are some examples of
when you have seen or heard statistics used inappropriately?
This is a good question because I was just viewing a graph the other day and noticed something
misleadi
Name:
Date:
Hypothesis Testing
Answer each question completely to recieve full
credit
1. There is a new drug that is used to treat leukemia. The
following data represents the remission time in weeks for a
random sample of 21 patients using the drug.
10
11
Exercise 20
1) Which patient scored the highest on the preoperative CVLT Acquisition?
What was his or her T score?
Patient 3 scored the highest with a T score of 63.
2) Which patient scored the lowest on postoperative CVLT Retrieval? What
was this patient
Describe the error in the conclusion. Given: There is a linear correlation between the
number of cigarettes smoked and the pulse rate. As the number of cigarettes increases the
pulse rate increases. Conclusion: Cigarettes cause the pulse rate to increase.
1.
The researchers analyzed the data they collected as though it were at what
level of measurement?
d. Experimental
2.
What was the mean posttest empowerment score for the control group?
97.12
3.
Compare the mean baseline and posttest depression scores of
Name:
Date: 3/27/16
Topic 4: ANOVA Excel Worksheet
Directions: Answer all questions and submit to instructor at the end
of Module 4
Statistical Conclusion:
There is no significant difference between the systolic pressure in the women in the three age grou
Statistical Hypotheses: There are two types of statistical hypotheses to
include null and alternative hypothesis.
Null Hypothesis - Samples observations resulting purely by chance.
Alternative Hypothesis - Sample observations influenced by non-random
caus
HLT362
DQ 1 (Week 1)
Random sampling is a way to remove bias in sample selection. For example, to pick a random
sample of 20 people out of a population of 1,000, you might put all 1,000 names is a hat and
then draw 20 of them. Random sampling attempts to
Name:
Date:4/3/16
Topic Five: Correlation/Regression and Chi Square
Excel Worksheet
Directions: Answer all problems and submit to instructor at the end of Module 5
SYSTOLIC AND DIASTOLIC BLOOD PRESSURE OF FEMALES
The following table represents systolic an
Max Points: 5.0
How would you explain the analysis of variance, assuming that your audience has not had a
statistics class before?
The Analysis Of Variance, also known as the ANOVA, can be used in cases where there are more
than two groups. When using ANO
Name:
Date:Grand Canyon University
Topic 2: Population and Sampling Distribution Excel Worksheet
Directions: Answer all questions and submit to instructor at the end of Topic 2
1 A. For a normal distribution that has a mean of 100, and a standard deviatio
Explain when a z-test would be appropriate over a t-test
One of the main purposes of statistics is hypothesis testing. Z-tests and a t-tests are both used in
hypothesis testing; hypothesis testing is just a way for you to figure out if results from a test
How can graphics and/or statistics be used to misrepresent data? Where have you seen this done?
Statistics is the science of learning from data, and of measuring, controlling, and communicating
uncertainty; and it thereby provides the navigation essential
Name: Johanna Walker
Date: 9/14/2016
Hypothesis Testing
Answer each question completely to recieve full credit
1. There is a new drug that is used to treat leukemia. The following data
represents the remission time in weeks for a random sample of 21
patie
EXERCISE 36 Analysis of Variance (ANOVA)
Name: Johanna Walker
1. The researchers found a significant difference between the two groups (control and
treatment) for change in mobility of the women with osteoarthritis (OA) over 12 weeks with the
results of F
EXERCISE 11 & 16
Exercise 11 - Using Statistics to Describe a Study Sample
Name: Johanna Walker
1. What demographic variables were measured at least at the interval level of measurement?
The demographic variables that were measured were age, income, lengt
Column1
Mean
79.2
Standard E 4.67095
Median
78
Mode
#N/A
Standard D 14.77084
Sample Var 218.1778
Kurtosis
0.079147
Skewness 0.551292
Range
48
Minimum
59
Maximum
107
Sum
792
Count
10
Name: Johanna Walker
Date: 9/2/2016
Topic One: Mean, Variance, and Standa
EXERCISE 20 Understanding T scores
Name: Johanna Walker
1. Which patient scored the highest on the preoperative CVLT Acquisition? What was his or her
T score?
Patient 3 with a T score of 63
2. Which patient scored the lowest on postoperative CVLT Retrieva