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I need help with my statistics homework and final exam. Are

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I need help with my...
I need help with my statistics homework and final exam. Are you able to help me?


I am not getting any answer from you. Are you still working on my problems????
Submitted: 7 years ago.Category: Homework
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Answered in 1 minute by:
9/24/2010
Tutor: Jabi, Lecturer replied 7 years ago
Jabi
Jabi, Lecturer
Category: Homework
Satisfied Customers: 1,364
Experience: I have done MBA in Finance and Accounting.
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Hello,

 

Please post your question?

 

Regards

Jabi

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Customer reply replied 7 years ago

Give an example of population members that will be omitted in the following situation.

There is a population of all 250 students in your large statistics class. You plan to obtain a simple random sample of 30 students by using the sampling frame of students present next Monday.

 

students absent on Monday

 

students who were absent on Friday as they are likely to absent on Monday

 

boys who are present on Monday

 

girls who are present on Monday

 

students who are going on a field trip on Tuesday

Tutor: Jabi, Lecturer replied 7 years ago
But you have the same question on the other post as well.
Ask Your Own Homework Question
Customer reply replied 7 years ago

Question:

Find the technique for gathering data in the study below.

A study of all league football scores attained through touchdowns and field goals was conducted by the National Football League to determine whether field goals account for more scoring events than touchdowns (USA Today).

Your Answer:

 

sampling

 

census

 

experiment

 

simulation

 

observational study

Customer reply replied 7 years ago

Question:

The director of the campus-computing center did a study to determine the patterns of student computer usage. He found that 15% of the total student computer hours occurred during the first 5 weeks of the term, 25% during the middle five weeks, and 60% during the last 5 weeks. Would a time-series graph of this data be appropriate? Give a reason for your answer.

 

Your Answer:

 

No. A time-series graph is not ideal for data collected over periods of longer than a week.

 

No. A time-series graph is not ideal for fewer than 10 events or categories of data.

 

Yes. A time-series graph identifies the frequency of events or categories in increasing order of occurrence.

 

Yes. A time-series graph would show how student usage of the computer lab varies during the term.

 

Yes. A time-series graph represents data that make up parts of a whole.

Customer reply replied 7 years ago

I have a question. If I log off now, will you still forward to me the answers for the remaining questions? I am sleepy, but will log on back in the morning. Please reply ASAP.

 

Thanks!!

Tutor: Jabi, Lecturer replied 7 years ago

Thank you for your request!!

 

I am not sure i can answer the first and last question, i didn't understand the first question at all, i can only answer the second question that's why i am going to leave your question open to other experts. I hope that you will get your answers soon.

 

 

Jabi

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Customer reply replied 7 years ago

Hi!, i'm back. I did not get an answer for the last question I sent you last night, so I'm sending it again and I hope you'll be able to answer it. thanks!.

 

Question:

The director of the campus-computing center did a study to determine the patterns of student computer usage. He found that 15% of the total student computer hours occurred during the first 5 weeks of the term, 25% during the middle five weeks, and 60% during the last 5 weeks. Would a time-series graph of this data be appropriate? Give a reason for your answer.

 

Your Answer:

 

No. A time-series graph is not ideal for data collected over periods of longer than a week.

 

No. A time-series graph is not ideal for fewer than 10 events or categories of data.

 

Yes. A time-series graph identifies the frequency of events or categories in increasing order of occurrence.

 

Yes. A time-series graph would show how student usage of the computer lab varies during the term.

 

Yes. A time-series graph represents data that make up parts of a whole.

Customer reply replied 7 years ago

While I'm waiting for the answer for the other question, here is another one. Thanks!

 

13. Question:

Consider the data that was obtained from a random sample of 45 credit card accounts. Identify all the averages (mean, median, or mode) that can be used to summarize the outstanding balance on each account.

Your Answer:

 

mean, median, and mode if it exists

 

only median if it exists

 

only mean if it exists

 

only mean and median if it exists

 

only mode if it exists

Customer reply replied 7 years ago

Thank you. Here is another question.

 

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth.

x:

23

17

12

35

29

 

84.20

 

67.36

 

101.00

 

88.84

 

126.25

 

Customer reply replied 7 years ago
<p>Here is another question.</p><p> </p><table border="0" cellspacing="0" cellpadding="0" width="100%"><tbody><tr><td valign="top"><p>At Center Hospital, there is some concern about the high turnover of nurses. A survey was done to determine how long (in months) nurses had been in their current positions. The responses (in months) of 20 nurses were</p><table border="0" cellspacing="0" cellpadding="0"><tbody><tr><td width="36" valign="top"><p>24</p></td><td width="36" valign="top"><p>2</p></td><td width="36" valign="top"><p>5</p></td><td width="42" valign="top"><p>16</p></td><td width="30" valign="top"><p>26</p></td><td width="36" valign="top"><p>37</p></td><td width="36" valign="top"><p>28</p></td><td width="36" valign="top"><p>48</p></td><td width="30" valign="top"><p>14</p></td><td width="36" valign="top"><p>8</p></td></tr><tr><td width="36" valign="top"><p>6</p></td><td width="36" valign="top"><p>24</p></td><td width="36" valign="top"><p>32</p></td><td width="42" valign="top"><p>27</p></td><td width="30" valign="top"><p>29</p></td><td width="36" valign="top"><p>11</p></td><td width="36" valign="top"><p>22</p></td><td width="36" valign="top"><p>33</p></td><td width="30" valign="top"><p>9</p></td><td width="36" valign="top"><p>37</p></td></tr></tbody></table><p>A box-and-whisker plot of the data is shown below.</p><p>Find the interquartile range.</p></td></tr><tr><td valign="top"><p align="right">Your Answer:</p></td><td valign="top"><table border="0" cellspacing="1" cellpadding="0"><tbody><tr><td><p> </p></td><td><p> </p></td><td><p>22.0</p></td><td><p> </p></td></tr><tr><td><p> </p></td><td><p> </p></td><td><p>20.5</p></td><td><p> </p></td></tr><tr><td><p> </p></td><td><p> </p></td><td><p>40.5</p></td><td><p> </p></td></tr><tr><td><p> </p></td><td><p> </p></td><td><p>39.0</p></td><td><p> </p></td></tr><tr><td><p> </p></td><td><p> </p></td><td><p>25.0</p></td><td><p> </p></td></tr></tbody></table></td></tr></tbody></table>
Tutor: Jabi, Lecturer replied 7 years ago

Your question is open to other available experts as i can't answer many of those questions. I hope you will get answers soon from the other experts.

 

Regards

Jabi

Ask Your Own Homework Question
Customer reply replied 7 years ago

I do not know if the last question was sent correctly because it is showing some odd information on you end, so I'll send it again. Thanks!

 

Question:

At Center Hospital, there is some concern about the high turnover of nurses. A survey was done to determine how long (in months) nurses had been in their current positions. The responses (in months) of 20 nurses were

24

2

5

16

26

37

28

48

14

8

6

24

32

27

29

11

22

33

9

37

A box-and-whisker plot of the data is shown below.

Find the interquartile range.

 

Your Answer:

 

22.0

 

20.5

 

40.5

 

39.0

 

25.0

 

Customer reply replied 7 years ago

WHAT IS THE ANSWER FOR THIS ONE?

 

15.Question:

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth.

x:

23

17

12

35

29

Your Answer:

 

84.20

 

67.36

 

101.00

 

88.84

 

126.25

 

 

Customer reply replied 7 years ago

I thank you. I will have to sign off here because I have to go to work. However, I'll be back tonight if that's o.k.with you. Thanks!!!!

Tutor: Jabi, Lecturer replied 7 years ago

I am going to answer this question now.

 

15.Question:

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth.

x:

23

17

12

35

29

Your Answer:

 

 

84.20

 

 

 

67.36

 

 

 

101.00

 

 

 

88.84

 

 

 

126.25

Thanks
Ask Your Own Homework Question
Tutor: Jabi, Lecturer replied 7 years ago
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Jabi
Jabi, Lecturer
Category: Homework
Satisfied Customers: 1,364
Experience: I have done MBA in Finance and Accounting.
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Tutor: Jabi, Lecturer replied 7 years ago

Thank you so much!

 

Have a good day

Take care

Good bye:)



Edited by Jabi on 9/24/2010 at 6:46 PM EST
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Customer reply replied 7 years ago
I thought I did this yessterday. I'm not sure of the reason why I am clicking accepted. Since this is the first time I'm using "JUSTANSWER.COM", could you please explain this to me. Thanks!!
Tutor: Jabi, Lecturer replied 7 years ago

Please tell me what you want me to explain, i would love to explain it.

 

Jabi

Ask Your Own Homework Question
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Jabi
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Satisfied Customers: 1,364
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