In the statistics I read, I found that in every category there was “speeding too fast”. Obviously that is a problem in Utah. In my experience with drivers, I have noticed that many people speed and don’t even realize that they are doing so. I think that speeding is a problem because so many people die from it. On the page it stated that “15.2%” of people die from speeding and that “14.7%” of teens die from speeding. I will admit that it is shocking that those percentages are so high. I didn’t expect that many deaths from just going to fast in a car. It has brought new light into my mind that people need to be more aware of how fast they go. Another thing that really took me by surprise is the percentages of overcorrections. The deaths in people are “7.9%” and teens are “8.8%”. Those percentages are lower than I had expected them to be. In my own life, I have had a number of people dear to my heart die from overcorrection. I am not saying that there should be more, but that I have noticed more deaths from overcorrections than speeding, running of the road, or failure to keep in proper lane. It is a dangerous thing that is deadly and shows that it is important to be aware of your actions. On the Top Five Reasons Teens Crash on Utah Highways, I noticed that it says “Driver Distraction 7.5%”. I wondered if that included texting and assumed it did. I’m guessing that the majority of those crashes were because of texting. There are so many people who don’t realize that it is a huge distraction and looking away for a few seconds, can make a difference. In my own life I have seen many teens around my age texting and driving and thinking it doesn’t matter when it really does. One text message could make the difference.
...Trajico, Maria Liticia D.
BSEd III-A2
REFLECTION
The first thing that puffs in my mind when I heard the word STATISTIC is that it was a very hard subject because it is another branch of mathematics that will make my head or brain bleed of thinking of how I will handle it. I have learned that statistic is a branch of mathematics concerned with the study of information that is expressed in numbers, for example information about the number of times something happens. As I examined on what the statement says, the phrase “number of times something happens” really caught my attention because my subconscious says “here we go again the non-stop solving, analyzing of problems” and I was right. This course of basic statistic has provided me with the analytical skills to crunch numerical data and to make inference from it. At first I thought that I will be alright all along with this subject but it seems that just some part of it maybe it is because I don’t pay much of my attention to it but I have learned many things. I have learned my lesson.
During our every session in this subject before having our midterm examination I really had hard and bad times in coping up with this subject. When we have our very first quiz I thought that I would fail it but it did not happen but after that, my next quizzes I have taken I failed. I was always feeling down when in every quiz I failed because even though I don’t like this...
...Statistics Paper
Driving is a very dangerous and often hazardous thing to do. This is especially true for people ages fifteen to nineteen. There are so many crashes each year for teen drivers that it’s a miracle anyone makes it past twenty years old unharmed. In 2009 alone three hundred and fifty teens were treated for a car related accident.
Teen car crashes are preventable. Often times teens drink before they drive or while they drive which makes the vehicle they are operating at the time unsafe for them, and the other people that might be in the car with them. In 2007 twenty five percent of drivers between the ages of fifteen and twenty had a blood alcohol content of 0.08 or higher when they crashed.
Another reason that teens die in car crashes is from the lack of wearing a seatbelt while in the car. In 2007, when polled, drivers between the ages of fifteen and twenty said that they only wore a seatbelt ten percent of the time when driving with other people. For people between the ages of fifteen and twenty years old, this is not only a death wish, but also illegal in most states. You will most likely be killed in a car crash if you are without a seatbelt, and you will most definitely be ticketed if you are found not wearing your seatbelt in a state that requires it. It doesn’t take that much effort just to strap yourself into a car with a convenient seatbelt, and it can...
...techniques.
Firstly we look at data analysis. This approach starts with data that are manipulated or processed
into information that is valuable to decision making. The processing and manipulation of raw
data into meaningful information are the heart of data analysis. Data analysis includes data
description, data inference, the search for relationships in data and dealing with uncertainty
which in turn includes measuring uncertainty and modelling uncertainty explicitly.
In addition to data analysis, other decision making techniques are discussed. These techniques
include decision analysis, project scheduling and network models.
Chapter 1 illustrates a number of ways to summarise the information in data sets, also known as
descriptive statistics. It includes graphical and tabular summaries, as well as summary measures
such as means, medians and standard deviations.
Uncertainty is a key aspect of most business problems. To deal with uncertainty, we need a basic
understanding of probability. Chapter 2 covers basic rules of probability and in Chapter 3 we
discuss the important concept of probability distributions in some generality.
In Chapter 4 we discuss statistical inference (estimation), where the basic problem is to estimate
one or more characteristics of a population. Since it is too expensive to obtain the population
information, we instead select a sample from the population and then use the information in the
sample to infer the...
...of 1000 flights and proportions of three routes in the sample. He divides them into different sub-groups such as satisfaction, refreshments and departure time and then selects proportionally to highlight specific subgroup within the population. The reasons why Mr Kwok used this sampling method are that the cost per observation in the survey may be reduced and it also enables to increase the accuracy at a given cost.
TABLE 1: Data Summaries of Three Routes
Route 1
Route 2
Route 3
Normal(88.532,5.07943)
Normal(97.1033,5.04488)
Normal(107.15,5.15367)
Summary Statistics
Mean
88.532
Std Dev
5.0794269
Std Err Mean
0.2271589
Upper 95% Mean
88.978306
Lower 95% Mean
88.085694
N
500
Sum
44266
Summary Statistics
Mean
97.103333
Std Dev
5.0448811
Std Err Mean
0.2912663
Upper 95% Mean
97.676525
Lower 95% Mean
96.530142
N
300
Sum
29131
Summary Statistics
Mean
107.15
Std Dev
5.1536687
Std Err Mean
0.3644194
Upper 95% Mean
107.86862
Lower 95% Mean
106.43138
N
200
Sum
21430
From the table above, the total number of passengers for route 1 is 44,266, route 2 is 29,131 and route 3 is 21,430 and the total numbers of passengers for 3 routes are 94,827.
Although route 1 has the highest number of passengers and flights but it has the lowest means of passengers among the 3 routes. From...
...compliments the regular mathematics and therefore both are tested in primary schools. Mathematics is the written application of operation. It teaches students to think clearly, reason well and strategize effectively. Mental Mathematics is the ability to utilise mathematical skills to solve problems mentally. The marks scored by pupils generate statistics which are used by teachers to analyse a student’s performance and development of theories to explain the differences in performance.
The Standard 3 class is where the transition from junior to senior level occurs where teachers expect the transference of concrete to abstract thinking would have occurred.
A common theory by many primary school teachers is ‘Students perform better in Mathematics than Mental math. Mental math is something that has to be developed and involves critical thinking. Mental math requires quick thinking and the student must solve the problem in their minds whereas in regular mathematics, the problem can be solved visually. Therefore, teachers should take these factors into consideration while testing and marking students in these areas.’
In this study, the statistics of 30 students of a standard 3 class of San Fernando Boys’ Government School will be analysed to determine the truth of this theory.
DATA COLLECTION METHODS
Mathematics and mental mathematics marks of term 1 of the class of 2013 were obtained from a Standard 3 teacher of San Fernando Boys’...
...Anthony
English 097
10-18-13
“Laws against Texting While Driving Are Ineffective”
Do you text while driving? Ashley Halsey’s topic on “laws against texting while driving are ineffective” by: Ashley Halsey. Ashley Halsey discusses why laws and new laws for “texting while driving are ineffective” and fails to meet an impact. Ashley Halsey reminds us that “texting while driving” can lead up to fatal crashes and distractions in the U.S. (par.1). Laws and new laws failed to meet an agreement. (par.1). She states that “cell phone bans around the country might take years to become effective, (par.1) just like drunk driving laws before them” said Ashley Halsey. (par.1). Ashley’s article about “Laws against Texting While Driving Are Ineffective” is very explainable. I agree with Ashley Halsey’s point about why laws and new laws failed to meet an impact with “texting while driving” being an issue.
First of all, Ashley Halsey argues that “laws against texting while driving are ineffective” (par.1) which I agree with 110%. Ashley explains that laws against it has little affect (par.1). Many people may argue on that the fact that texting and driving isn’t that bad, but texting and driving is the biggest issue of it all. Ashley Halsey is saying that texting while driving is a dangerous distraction; also laws against...
...
MBA 501A – [STATISTICS]
ASSIGNMENT 4
INSTRUCTIONS: You are to work independently on this assignment. The total number of points possible is 50. Please note that point allocation varies per question. Use the Help feature in MINITAB 16 to read descriptions for the data sets so that you can make meaningful comments.
[10 pts] 1. Use the data set OPENHOUSE.MTW in the Student14 folder. Perform the Chi
Square test for independence to determine whether style of home and location are are related. Use α = 0.05. Explain your results.
Pearson Chi-Square = 37.159, DF = 3, P-Value = 0.000
Likelihood Ratio Chi-Square = 40.039, DF = 3, P-Value = 0.000
The P value associated with out chi square is 0.00 and the Alpha level is 0.05 so we reject the null hypothesis. The P- value is less than the alpha level. So, we conclude that style of homes and locations are not related.
[10 pts] 2. Use the data set TEMCO.MTW in the Student14 folder. Perform the Chi
Square test for independence to determine whether department and gender are related. Use α = 0.05. Explain your results.
Pearson Chi-Square = 1.005, DF = 3, P-Value = 0.800
Likelihood Ratio Chi-Square = 1.012, DF = 3, P-Value = 0.798
The P-value associated with out chi square is 0.800 and the Alpha level is 0.05 we can see that we are unable to reject the null hypothesis. The P- value is greater than the alpha level. So, we conclude that departments and gender are related..
[30 pts] 3. Use the data set...
... Maggie Behm
Distracted driving is exactly what it sounds like. Distracted driving is driving while distracted. These distractions can range anywhere from eating to using a cell phone while driving- texting or calling, from loud music to having friends and family members in the car with you while you are driving. Almost anything can be a distraction as long as it takes your attention away fromdriving for anytime as short as five seconds. In fact, one study it said that eighty percent of all crashes and collisions and that at least sixty five percent of near crashes and collisions have to do with the driver being inattentive or distracted while behind the wheel. Three seconds may not seem like a very long at all, and it may not be but when you are behind the wheel of a two ton block of metal three seconds can change everything. There is countless case after case about drivers being distracted and getting into a fatal car accident. To drive safely on the road it takes one hundred percent of your full attention to what you are doing.
There are many different kinds of distractions. The National Highway Traffic Safety Administration, or NHTSA, classifies the biggest and most common driver distractions into two categories and four subcategories. The two broad categories are distractions that happen inside the vehicle and distractions that happen outside the vehicle. Distractions that...