Statistics; mid-term exam and I really in need of help

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halilas63

New member
Joined
Jun 15, 2009
Messages
4
Hello dear friends,
This is Halil from NY.
I ned help from you or if possible from your friends.
I have to answer 9 question regarding statistics which is one of my courses.
these 9 questions are mutiple-choice, and I have to submit it until tuesday morning...
can you halp me with this?
Thanks and best regards,
note; after i copied and paste the questions there occured some mistakes at last questions (the place of number)
if you give me your e-mail address then i can send it with the attachment...
I am political science student and have no idea about statistics...

these are the questions..

Statistics for the Social Sciences
Midterm Review
June 2009


TRUE/FALSE

1. A sample is a subset of a population.
2. A negative number times another negative number yields a positive number.
3. A summary number for a population is called a statistic.
4. An ordinal scale is the lowest measurement scale.
5. The number of feet you jump in a competition is measured continuously.
6. In a histogram, frequency is indicated by the width of the bar.
7. There must be equal numbers of scores on each side of the mean.
8. It is impossible for a score to fall more than 3 standard deviations in either direction from the mean.

MULTIPLE-CHOICE
1. You are interested in the average reading achievement test score of the currently enrolled students in Edison Elementary School. The children in Edison Elementary School would be referred to as a
A. sample.
B. population.
C. statistic.
D. parameter.

2. Which one of these is a continuous measure?
A. How many blue ribbons a contestants won
B. How many pictures are hung on a wall
C. How many miles to the nearest shopping mall
D. How many mistakes you made on a homework assignment

3. Which of these is a discrete measure?
A. How many points you earn on a test
B. How many inches you grew in a year
C. How many terms papers are due this semester
D. How many hours you study for an exam

4. If you sum a set of frequencies, you get the
A. variance.
B. relative frequency.
C. sample size.
D. recommended interval width.







COMPLETION
5. Indicate the first letter (N, O, I, R) of the highest possible scale for each of the following measures:

Measure Highest Scale
(a) Brand of athletic shoe _____
(b) Typing speed _____
(c) Birth order within one’s family _____
(d) Handedness (left, right) _____
(e) Score on a statistics course quiz _____

6. Examine the following stem-and-leaf display.

Stem Leaf
5 3 6
6 1 4 6
7 2 4 4 5 8
8 0 1 3 3 3 4 5 5 5 5 6 9 9
9 1 1 2 5 6 6 8

What is the lowest score?
What is the highest score?

7. If there are many more low scores than high scores, the line graph of scores will be
A. negatively skewed.
B. positively skewed.
C. platykurtic.
D. leptokurtic.

8. Here are the diastolic blood pressures of 10 patients prior to a diet and medication regimen.
120, 116, 104, 102, 105, 112, 104, 111, 107, 100

Find the (a) range, (b) variance, and (c) standard deviation for the systolic blood pressures. Show your work.

9. During the past year the daily stock prices for three stocks have been approximately normally distributed. The three stocks’ yearly data and current prices are listed below.

Stock Mean Price Stan. Dev. of Price Current Price
ACME 43.23 2.76 45.67
BUY RITE 22.87 3.14 27.46
CARS R US 68.19 3.82 71.58

You are considering buying one of the three stocks. Which stock has shown the greatest relative improvement during the past year?
 
halilas63 said:
Hello dear friends,
This is Halil from NY.
I ned help from you or if possible from your friends.
I have to answer 9 question regarding statistics which is one of my courses.
these 9 questions are mutiple-choice, and I have to submit it until tuesday morning...
can you halp me with this?
Thanks and best regards,
note; after i copied and paste the questions there occured some mistakes at last questions (the place of number)
if you give me your e-mail address then i can send it with the attachment...
I am political science student and have no idea about statistics...

these are the questions..

Statistics for the Social Sciences
Midterm Review
June 2009


TRUE/FALSE

1. A sample is a subset of a population.
2. A negative number times another negative number yields a positive number.
3. A summary number for a population is called a statistic.
4. An ordinal scale is the lowest measurement scale.
5. The number of feet you jump in a competition is measured continuously.
6. In a histogram, frequency is indicated by the width of the bar.
7. There must be equal numbers of scores on each side of the mean.
8. It is impossible for a score to fall more than 3 standard deviations in either direction from the mean.

MULTIPLE-CHOICE
1. You are interested in the average reading achievement test score of the currently enrolled students in Edison Elementary School. The children in Edison Elementary School would be referred to as a
A. sample.
B. population.
C. statistic.
D. parameter.

2. Which one of these is a continuous measure?
A. How many blue ribbons a contestants won
B. How many pictures are hung on a wall
C. How many miles to the nearest shopping mall
D. How many mistakes you made on a homework assignment

3. Which of these is a discrete measure?
A. How many points you earn on a test
B. How many inches you grew in a year
C. How many terms papers are due this semester
D. How many hours you study for an exam

4. If you sum a set of frequencies, you get the
A. variance.
B. relative frequency.
C. sample size.
D. recommended interval width.







COMPLETION
5. Indicate the first letter (N, O, I, R) of the highest possible scale for each of the following measures:

Measure Highest Scale
(a) Brand of athletic shoe _____
(b) Typing speed _____
(c) Birth order within one’s family _____
(d) Handedness (left, right) _____
(e) Score on a statistics course quiz _____

6. Examine the following stem-and-leaf display.

Stem Leaf
5 3 6
6 1 4 6
7 2 4 4 5 8
8 0 1 3 3 3 4 5 5 5 5 6 9 9
9 1 1 2 5 6 6 8

What is the lowest score?
What is the highest score?

7. If there are many more low scores than high scores, the line graph of scores will be
A. negatively skewed.
B. positively skewed.
C. platykurtic.
D. leptokurtic.

8. Here are the diastolic blood pressures of 10 patients prior to a diet and medication regimen.
120, 116, 104, 102, 105, 112, 104, 111, 107, 100

Find the (a) range, (b) variance, and (c) standard deviation for the systolic blood pressures. Show your work.

9. During the past year the daily stock prices for three stocks have been approximately normally distributed. The three stocks’ yearly data and current prices are listed below.

Stock Mean Price Stan. Dev. of Price Current Price
ACME 43.23 2.76 45.67
BUY RITE 22.87 3.14 27.46
CARS R US 68.19 3.82 71.58

You are considering buying one of the three stocks. Which stock has shown the greatest relative improvement during the past year?
Click to expand...

Since this is a test, are you allowed to seek assistance for these answers?

Please show us you are work, indicating exactlywhere you are stuck - so that we know where to begin to help you.
 
yes exactly, I am not even attending the classes , this test just for increasing my graduation degree.
I have not taken math or statistics since I finished high school..
if some one can answer the question, will be very helpful...

thanks and best regards.

Halil
 
halilas63 said:
yes exactly, I am not even attending the classes , this test just for increasing my graduation degree.
I have not taken math or statistics since I finished high school..
if some one can answer the question, will be very helpful...

thanks and best regards.

Halil
Click to expand...

Some of these questions involve very basic concepts, and you have made no attempt to answer any of them.

It doesn't seem "right" to me that you are able to earn credit toward a degree for someone else's work. Of course, opinions may vary. Perhaps if you had actually attended the classes, you might be able to pass the exam on your own. I guess I'm old-fashioned to think that.
 
of course I already answered some of them which means I am not stupid:)
I really dont understand why all of you are acting or behaving as the most fairest people in world or as a prophet.
these questions were very easy for me and I answered already and I dont say they are correct but you know at least I tried to answer them.
But for the rest is not easy not my subject and at this point I need your help.. if you can..
 
halilas63 said:
I am not even attending the classes , this test just for increasing my graduation degree.
Click to expand...
So you're wanting someone to take the test for you, a test over material you've never studied, so that you can defraud your way into a degree...?

And people wonder why employers give tests to prospective employees... :roll:
 
of course I already answered some of them which means I am not stupid:)
I really dont understand why all of you are acting or behaving as the most fairest people in world or as a prophet.
these questions were very easy for me and I answered already and I dont say they are correct but you know at least I tried to answer them.
But for the rest is not easy not my subject and at this point I need your help.. if you can..

TRUE/FALSE

1. A sample is a subset of a population. TRUE

2. A negative number times another negative number yields a positive number. TRUE

3. A summary number for a population is called a statistic. FALSE

4. An ordinal scale is the lowest measurement scale. FALSE

5. The number of feet you jump in a competition is measured continuously. ??

6. In a histogram, frequency is indicated by the width of the bar. TRUE

7. There must be equal numbers of scores on each side of the mean. TRUE

8. It is impossible for a score to fall more than 3 standard deviations in either direction from the mean. FALSE

MULTIPLE-CHOICE

1. You are interested in the average reading achievement test score of the currently enrolled students in Edison Elementary School. The children in Edison Elementary School would be referred to as a POPULATION

A. sample.

B. population
C. statistic.

D. parameter.

2. Which one of these is a continuous measure? C

A. How many blue ribbons a contestants won

B. How many pictures are hung on a wall

C. How many miles to the nearest shopping mall

D. How many mistakes you made on a homework assignment

3. Which of these is a discrete measure? B

A. How many points you earn on a test

B. How many inches you grew in a year

C. How many terms papers are due this semester

D. How many hours you study for an exam


but the rest , I dont know and even have no opinion...
 
I'll correct one answer for you - rest you have study......

halilas63 said:
of course I already answered some of them which means I am not stupid:)
I really dont understand why all of you are acting or behaving as the most fairest people in world or as a prophet.
these questions were very easy for me and I answered already and I dont say they are correct but you know at least I tried to answer them.
But for the rest is not easy not my subject and at this point I need your help.. if you can..

TRUE/FALSE

1. A sample is a subset of a population. TRUE

2. A negative number times another negative number yields a positive number. TRUE

3. A summary number for a population is called a statistic. FALSE

4. An ordinal scale is the lowest measurement scale. FALSE

5. The number of feet you jump in a competition is measured continuously. ??

6. In a histogram, frequency is indicated by the width of the bar. TRUE

7. There must be equal numbers of scores on each side of the mean. TRUE <<< Incorrect - for example (1,2,3,4,5,6,7,8,10,26,38) has a mean of 10. However, it has 8 scores one side and two on the other side.

8. It is impossible for a score to fall more than 3 standard deviations in either direction from the mean. FALSE

MULTIPLE-CHOICE

1. You are interested in the average reading achievement test score of the currently enrolled students in Edison Elementary School. The children in Edison Elementary School would be referred to as a POPULATION

A. sample.

B. population
C. statistic.

D. parameter.

2. Which one of these is a continuous measure? C

A. How many blue ribbons a contestants won

B. How many pictures are hung on a wall

C. How many miles to the nearest shopping mall

D. How many mistakes you made on a homework assignment

3. Which of these is a discrete measure? B

A. How many points you earn on a test

B. How many inches you grew in a year

C. How many terms papers are due this semester

D. How many hours you study for an exam


but the rest , I dont know and even have no opinion...
Click to expand...
 
6. In a histogram, frequency is indicated by the width of the bar. TRUE

False, the hieght or the length indicates the frequency
 
halilas63 said:
of course I already answered some of them which means I am not stupid:)
I really dont understand why all of you are acting or behaving as the most fairest people in world or as a prophet.
these questions were very easy for me and I answered already and I dont say they are correct but you know at least I tried to answer them.
But for the rest is not easy not my subject and at this point I need your help.. if you can..
Click to expand...

If you had shown us the answers you've gotten for the questions you DID answer, we probably would have had an entirely different response to your questions. Since you didn't DO that, we had no option but to assume that you were looking for US to give you all of the answers.

And, the fact that you freely confessed that you had not attended the classes, what else were we to think?
 
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