Statistics Lab week 6

(1) A study of the number of cars sold looked at the number of cars sold at 500

I conducted a survey, asking 20 females and 20 males their favorite food group for my AP Statistics project. I surveyed on Wednesday, September 27 and on Thursday, September 28 at Marshall High School. They chose from protein, grain, vegetables, fruit, and dairy. From the data, I found that 10 males and 2 females liked protein best, 3 males and 2 females liked grains best, 1 male and 1 female liked vegetables best, 3 males and 13 females liked fruit best, and 3 males and 2 females liked dairy best. Half of the males liked protein best, while most females liked fruits best. The least amount of both males and females liked vegetables. From this data, we can see that males like protein more than females do, and females like fruit more than males

Identity theft is a significant problem to both citizens and financial institutions. The FTC estimates that over 27.3 million Americans have been the victims of identity theft in the past five years. The

Read the directions and write answers independently. 1. (L.2) Choose the sentence with correct capitalization and punctuation. A. Mrs. Brown catches the bus at the corner of Elm and N. Grove.

            Identity theft is an issue faced on a daily basis for those that are living in our wonderful state of California. For some it is common knowledge to protect your identity but for those that are not familiar with the practices of these common crooks, will cost a lifetime of savings and irreparable damage to ones credit and finances. According to the California Office of Privacy Protection, “there were more than 11 million victims of Identity Theft in the

A pharmaceutical company is testing the effectiveness of a new drug for lowering cholesterol. As part of this trial, they wish to determine whether there is a difference between the effectiveness for women and for men. Using   = .05, what is the value the test statistic?

Due to financial hardship, the Nyke shoe company feels they only need to make one size of shoes, regardless of gender or height. They have collected data on gender, shoe size, and height and have asked you to tell them if they can change their business model to include only one size of shoes – regardless of height or gender of the wearer. In no more 5-10 pages (including figures), explain your recommendations, using statistical evidence to support your findings. The data found are below:

The t-test is a parametric analysis technique used to determine significant differences between the scores obtained from two groups. The t-test uses the standard deviation to estimate the standard error of the sampling distribution and examines the differences between the means of the two groups. Since the t-test is considered fairly easy to calculate, researchers often use it in determining differences between two groups. When interpreting the results of t-tests, the larger the calculated t ratio, in absolute value, the greater the difference between the two groups. The significance of a t ratio can be determined by comparison with the critical values in a

According to the website http://womenissues.about.com/cs/abortionstats/a/aaabortionstats.htm there are approximately 126,000 abortions conducted each day throughout the world. This website includes the abortion statistics of the world and breaks the data down to the demographics of the United States. It also discusses the decisions to have an abortion and the use of contraceptives in the United States. This was an informative website and included detailed statistics conducted by the Alan Guttmacher Institute. According to the website http://www.bls.gov/cps in 2000, gon average there were roughly 135 million employed and 6 million unemployed people in the labor force in the United States.h (p. 3) The websites definition of

It sounds like using the stratified random sampling would be a good choice for using a particular group of people.  In stratified random sampling the individuals conducting the research know some things about the community that is providing date such as age, gender, ethnicity, and medical diagnosis. This is also a good option when there is a time restraint to obtain the information that is being gathered.  The survey would also have to be ensured it is written in a way that the average person can clearly understand the question to get a proper answer.

Answer: Sample statistics are understood as numerical ascriptions given towards a sample of which is determined by the consolidation or summarizing of collected data within research (Bennett, Briggs, & Triola, 2014). This definitional explanation shares that the given example is that of a sample statistic. The example provides no understanding of a viable population of which has been studied or the total numerical identification of the complete student population of which participated within the exam. Rather it only shares that 15 students, after participating within the first exam, dropped the course.

2. True or False: Interential statistics involves making an accurate an outcome based on anincomplete set of data

1. Case Study:  “Don’t Let Crooks Steal Your Identity: How to Protect Yourself-and Your Credit Rating” (p. 225)

Dear Statistics Students, some advice in succeeding in class is students should attend class to understand the material better. The class is a four-credit class and we go through a lot of material and if you do not attended class it can cause you to miss the material. The power points are an outline so attending class helps to understand the slides and concepts better. I would not be on the phone during class incase of missing examples of concepts. Another key to success would be to practice and study the homework to become prepared for the quizzes. I would definitely work through the problems on the homework several times to understand how to do the math and to fix your past mistakes. When taking the quizzes and tests I would read the questions

number in order from 1 to 100, the make of the car, the price when new