Two data sets are given below, each representing times (in minutes) to complete a given task for two different samples of students.

Data Set A: 3.1, 4.7, 7.3, 8.1, 8.1, 8.7, 8.8, 9.1, 9.1, 9.2

Data Set B: 5.2, 5.6, 5.8, 6.9, 7.0, 7.7, 7.9, 8.5, 8.8, 12.5

Complete the back-to-back stem plot for data set B by adding the numbers that belong in each class below, using a class width of 1.  Do not enter spaces between the numbers. If a class does not contain anything, then write the word "empty". Key: 3|1 = 3.1 minutes

5 |__________________________(Blank #1)

6 |__________________________(Blank #2)

7 |__________________________(Blank #3)

8 |__________________________(Blank #4)

9 |__________________________(Blank #5)

10|__________________________(Blank #6)

11|__________________________(Blank #7)

12|__________________________(Blank #8)

Blank #9: For both data sets, the mean is approximately 7.6 minutes and the standard deviation is approximately 2.0 minutes. The mean and standard deviation are not the best to use in comparing centers and spreads of these distributions because they are ______________ in shape.

Blank #10: Find the median and IQR for data set A, rounding to one decimal place if needed. Report your answer as median,IQR with no extra spaces or units.

Blank #11: Find the median and IQR for data set B, rounding to one decimal place if needed. Report your answer as median,IQR with no extra spaces or units.

Question 2 options:

Lisa and Danny are neighbors that live on Guerrero Street. Fifteen years ago Lisa built a gazebo. She frequently used the gazebo, but she was not aware that actually the gazebo was on property belonging to Danny. A month after the gazebo was built Lisa built a fence between her and Danny’s yard, and the gazebo was on Lisa’s side of the fence. Fifteen years later, Danny has a survey done, and he discovers that the gazebo is on his land. Danny brings a suit to evict Lisa from the land. Does Lisa have a defense? Assume that the state in question has an adverse possession period of ten years.

The requirements below must be met for your paper to be accepted and graded:  

Write between 500 – 750 words (approximately 2 – 3 pages) using Microsoft Word.

Attempt APA style, see example below.

Use font size 12 and 1” margins.

Include cover page and reference page.

At least 60% of your paper must be original content/writing.

No more than 40% of your content/information may come from references.

Use at least two references from outside the course material, preferably from EBSCOhost. Text book, lectures, and other materials in the course may be used, but are not counted toward the two reference requirement.

Reference material (data, dates, graphs, quotes, paraphrased words, values, etc.) must be identified in the paper and listed on a reference page.Reference material (data, dates, graphs, quotes, paraphrased words, values, etc.) must come from sources such as, scholarly journals found in EBSCOhost, online newspapers such as The Wall Street Journal, government websites, etc. Sources such as Wikis, Yahoo Answers, eHow, etc. are not acceptable.

1. Please submit a bank reconciliation and any required journal entries based on the following information. Use good form! Do not submit in Comments or your formatting will be lost and you will lose points. Submit in Word, Excel, or Text Submission. Thanks. Provide a citation including page number from the current text for the course. The Bramant Corp checkbook balance as of August 31 was $8040, but the bank statement balance was $8510. The controller carefully reviewed the two records to find the discrepancies. A $1900 deposit was mailed to the bank by Bramant on August 30 but was not included on the August 31 bank statement. Outstanding checks -- #255 for $325, #280 for $100, #295 for $700. Check #289 paying a vendor's account payable, Logs Unlimited, was written for $140 and appeared on the bank statement for that amount. Bramant check register showed the check as written for $410 A customer, Millwork Specialities, paid their balance of $910. The check was deposited in the bank and recorded at $910 by the bank. Inexplicably, Bramant recorded the check for $190. There is an EFT payment for $275 to the electric company listed on the bank statement. This payment has not been recorded on Bramant’s books. There is an EFT receipt on the bank statement from a customer, Susan’s Supplies, for $120 that has not been recorded by Bramant. Included with the bank statement was a credit memorandum for $780, representing the proceeds of a $700 note receivable (plus interest) left at the bank for collection. Bramant has not yet recorded this memorandum. A customer’s check, Brad Carpentry, was returned as NSF, $345. Bramant’s controller was not aware of this before seeing it on the bank statement. Included with the bank statement was a debit memorandum for $25 for service charges. Bramant has not yet recorded this memorandum.

Researchers were studying the effects of aerobic exercise on diastolic blood pressure in patients newly diagnosed with heart disease. The goal of this study is to identify changes in blood pressure in each patient after carrying out a new weekly aerobic exercise routine (given to each patient) for 6 months. Researchers measured the diastolic blood pressure of each patient at the beginning of the study (baseline) and 6 months after. The results of the study are listed in Table 2.

Your task for this assignment is to analyze the data in Table 2 and conduct hypothesis testing.

To complete this exercise, you must follow the steps of hypothesis testing (see Hypothesis Testing (PDF)). Make sure that in your Word document you demonstrate you followed each of the steps! Feel free to refer to your assignment for the Online Week 3 module if you need guiding questions to help you complete this part of the assignment.

Table 2.

Diastolic Blood Pressure (mm Hg) of 20 study participants at baseline and 6 months after starting a new weekly aerobic exercise program

College Algebra

Linear Regression Analysis

Please complete parts a, b, c, d and e. Use your graphing calculator to complete all parts. You may record your answers on a word document.

1. The table gives the age and systolic blood pressure for a sample of 12 randomly selected healthy adults.

a) Use a graphing utility to create a scatter plot for the data. Using the age as the

independent variable x and the Systolic Blood pressure as the dependent variable y.

Do the data appear to be linear?

**If when you hit GRAPH and you do not see anything change the window. Hit the window

button and choose option 9. Now do you see the graph?

b) Use the regression feature of a graphing utility to find a linear model for predicting

Systolic Blood pressure given age. Write below the linear equation you found using

your calculator. Include the correlation coefficient.

c) What does the correlation coefficient tell us about the data and the linear equation?

d) Use the linear model from part (b) to approximate Systolic Blood pressure for a

healthy 55 year old and healthy 30 year old.

Systolic Blood pressure for a 55 year old:

Systolic Blood pressure for a 30 year old:

e) Describe the trend you see in the data. How well does the function from part b fit

the data?

For one of the final projects, you will individually or in partners demonstrate that you can connect statistics topics in a short but coherent presentation. Your project's data set will need at least four variables - at least two categorical and at least two quantitative. For example, you might consider the following variables for American participants in a survey: birth month (categorical), state of birth (categorical), average number of bowls of cereal eaten per week (quantitative), and amount spent on groceries (quantitative).

(a) First, formulate a research question relating to two of your quantitative variables along the lines of "how does *quantitative variable 1* relate to *quantitative variable 2*?" For example, you might ask "Does the average height for students relate to the average number of hours slept by students?" Include the question in your Word document.

(b) Create a least-squares regression line that answers the research question posed in part (a). Your answer here will be graded on the following: (i) an appropriate scatterplot related to the two variables (ii) correlation coefficient "r" and coefficient of determination "r²" between the two variables, (iii) a determination of whether the correlation coefficient is significant and (iv) whether your line is correct (with slope and intercept) based on the data provided!

STATISTICS IN PRACTICE:
This is a group assignment that seeks to reveal students understanding of statistics in general and it’s practical usefulness. The following are the guidelines;
1.      Each group has to identify a natural process or activity and gather data about/from the process.
2.      Data gathered can be in real time or historical. You can pick the data from government websites (e.g. Ghana statistical service) or company websites (sales data etc.)
3.      Sample size of collected data should not be less than fifty (50).
4.      Construct a grouped frequency distribution for the data gathered.
5.      Present your data using any three of the graphical representation methods you have studied.
6.      Evaluate any three measures of central tendency for the data. What is the meaning of these values.
7.      Evaluate any three measures of dispersion for the data. What is the meaning of these values.
8.      Summarize the characteristics of the data and discuss your results.
9.      Groups are to present their work in Microsoft word by the submission date. The written report should bear the center name name, student name and index number of every member in the group.
10.  The written report should start with an introduction of the organisation and/or process chosen and then continue with the presentation of raw collected data, organizing and classification of the data, presentation of data (using descriptive statistics), analysis, interpretation and discussion of results.
11.  Grading will be based on innovativeness, accuracy of data collection, analysis and subsequent interpretations as well as the ability of each group member to present with clarity of thought. How the group as a whole is able to respond to questions concerning the work presented will also be taken into consideration.

Q33: Which political ideology opposes government regulation on business and the environment?

- liberalism

- conservatism

Q34: Which political ideology is about a belief in extensive government intervention in the economy and progressive taxation?

- liberalism

- conservatism

Q35: Which political ideology is further to the left than the mainstream Democratic Party?

- libertarians

- republicans

- socialists

- moderates

Q36: Which of the following methods will generate a simple random sample for probability sample?

- Standing on the street corner and handing out public opinion surveys to people that pass by.

- surveying the top experts in the field of politics to predict the outcome of an election

- using a random number generator to select people from rolls of registered voters to predict the outcome of the election

- using chain referrals to get more people to interview from the first set of people you interview

Q37: Which of the following is an example of the social desirability effect?

- someone answers an online survey 100 times to try to show the results

- someone misunderstands the meaning of the word "welfare" on a survey

- someone claims to attend church more than the actually do

- someone completes a paper survey but then forgets to mail it in

Q38: In 2016, election pollstors used models of likely voters that left out rural, blue-collar voters who supported Trump. The resulting inaccuracy in their poll results was due to...

- push polls

- selection bias

- the bandwagon effect

- social desirability effects

Q39: The purpose of a push poll is:

- influence public opinion

- create a larger sample

- measure public opinion

- solicit ideas

Q40: A candidate who has momentum (leading in the polls) has an easier time raising campaign funds. This is an example of...

- selection bias

- the bandwagon effect

- political socialization

- social desirability