# Statistics - Data Collection

17,447 results

### statistics

What tools can be used to collect data? What are some of the issues that occur with data collection? Are some tools more appropriate for collecting certain types of data and why?

### Science

An experiment always starts with: data collection or theory or group selection or randomization. I have you ask a question then do background research....so does that mean the answer to the question would be data collection? Sorry

### human services

please tell me if I am correct: a data collection method could be a face to face interview or an observation and a data collection instruments are summary report forms, questionaries, and behavioral diaries? Also could you explain to me what managerial research is?

### Research and Evaluation

I know what primary and secondary data collections are, but why must secondary data collection be conducted early in a project and the primary data collection be done later in the project?

### math

• what is statistics • Perspective statistics • inferential statistics • Data statistics • Example of a Quantitative data • Example of a Qualitative data • What is population •what are the different scale of measurement • what are the different ways/method to...

### environmental science

Please check this: Scientists use statistics to a. graph data b. analyze data c. communicate ideas to each other d. all of the above B ( in my book it says: scientists rely on and use statistics to summarize, characterize, analyze, and compare data. statistics is usually a ...

### Stats

Instructions for the Experiment / Data Collection regarding questions 1-4: Collect data regarding the caffeine content in a 16oz cup of coffee. Collect the amount of caffeine in 20 different brands of coffee. 1.Calculate the following descriptive statistics corresponding to ...

### education

How does data collection integrate with your teaching and learning in the classroom and How do data analyses affect your instructional strategies

### Criminal Justice -rsearch and statistics

I have to write a description of an original research project at least 4 pages long. I have to formulate a theory based on any subject that is relevant to the criminal justice system. My theory should be a definitive statement . There are 3 sections; Theory Construction Data ...

### Data

Research South Carolina for data that is commonly used in health services systems. This includes census data, vital statistics data (birth, deaths, marriages, and divorces), surveillance data, administrative data, and survey research data. Keep in mind that most of this data ...

### statistics

Group the largest data set and find mean, median, mode, variance, standard deviation, 15-th, 45-th and 80-th percentiles of the grouped data. Then find the same sample statistics using the ungrouped data. Is there any difference? Comment.

### statistics

The following data on the number of iron workers in the United States for the years 1978 through 2008 are provided by the U.S. Bureau of Labor Statistics. Using regression techniques discussed in this section, analyze the data for trend. Develop a scatter plot of the data and ...

### Int. science

The creation of graphs usually occurs during _____. data analysis data collection observation questioning I think it might be B

### intro to software development

I have aa assignment that asks to identify three processes or capapbilities needed to track of home dvd and and cd collection. identify the input data required for each process, and identify a logical name for each data outputitem and type of data out put. What is this?

### math

joe wants his sticker collections. he wants to increase his collection by 20%. if he has 1400 stickersin his collection now, ho many stickers does he need to add to his collection?

### statistics

solve this math statistic problem: an insurance company insures a person's antique coin collection worth $20,000 for an annual premium of $300. If the company figures that the probability of the collection being stolen is 0.002, what will be the company's expected profit?

### Statistics - Data Collection

If you were in a cafeteria full of students and you wanted to randomly divide 10 students into group A and 10 students into group B, what would be the least biased way to do it?

### m/c

Which of the following refers to when a researcher gathers data from a sample and uses the statistics generated to reach conclusions about the population from which the sample was taken? inferential statistics holistic statistics conclusive statistics descriptive statistics is...

### Data Gathering and Inference

When the production manager finds the average life of her bulb-lifetime data, it is an example of what phase of inferential statistics? A. Data organization. B. Data gathering. C. Data analysis. D. Probability-based inference.

### Stats

Sooo I'm a little confused on these 2 questions: 1. Sample: a. method of collecting, presenting, and describing sample data b. a numerical value summarizing all the data of an entire population c. a collection, or set, of individuals, objects, or event whose properties are to ...

### Health Care Statistics

A census is defined as which of the following? A. A collection of data B. A survey conducted with a small group C. A bureau of research specialists D. A count of a particular population B. I did my studying and it sows survey but I am hesitant of the choice since its saying ...

### SCIENCE

1. WHICH OF THE FOLLOWING IS MOST LIKELY TO RESULT IN A SCIENTIST DRAWING WRONG CONCLUSIONS? A. CONDUCTING A DOUBLE-BLIND TEST B. CONDUCTING A CONTROLLED EXPERIMENT C. PREVENTING OPINIONS FROM AFFECTING DATA COLLECTION D. GATHERING DATA FOR A BRIEF PERIOD OF TIME D

### Statistics

Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection...

### Statistics

Let x be the elevation (in thousands of feet) for an archaeological site in the southwestern United States. Let y be the percentage of unidentified artifacts (no specific cultural affiliation) at a given elevation. Suppose that the following data were obtained for a collection...

### statistics

18 workers at a large assembly plant were asked the time it took to commute to work. The data was analyzed in Minitab and the Descriptive Statistics for the data appears below. Descriptive Statistics: Minutes Variable N Mean Median TrMean StDev SE Mean Minutes 18 30.06 29.50 ...

### Statistics

Give a brief account of the chief methods of collecting primary data? My answer: is personal Investigation Through investigation collection through questionnaire and through telephone, and of course i have explained each one of them, i just wanted whether what i have written ...

### Statistics Helps

Carter has a large marble collection. Carter knows that he has exactly 20 blue marbles in his collection, but does not know how many marbles he has in all. Carter mixes up his marbles and randomly selects 40 marbles. Of the 40 marbles that he chose, 4 were blue. How many ...

### ICT

can anybody get me a collection of data of a movie!!!plzzzzzzzzzz..............its urgent thxx... xxx

### Physics

Why is it important to use the maximum force reading from a data collection?

### Statistics

I you are told that a data set has a mean of 25 and a variance of 0 you can conclude that A)There is only one observation in the data set B) There are no observations in the data set C)All of the observation in the data set are 25 D)Someone has made a mistake E) None of the ...

### M/C

A researcher studies the effectiveness of managers at a small company containing 46 employees. The researcher interviews every employee, gathers data, analyzes the data, and writes up a report of her findings for company management. Company management uses the report to ...

### MTH233/statistics UOP

Find one quantitative and one qualitative data set from a reliable source and determine the best way to present that data graphically. Show your graph and explain your reasoning for choosing this presentation method. When might the reported median of data be more appropriate ...

### Elementary Statistics need help ASAP

Measures of Central Tendency Be sure to show your work so that partial credit may be awarded. 4. An MM207 statistics class surveyed 24 students to find out how many hours they spent doing homework during the previous week. 10 11 10 8 10 10 15 12 10 8 13 11 11 13 10 11 13 10 11...

### Information Technology

In the second column, list at least three processes (capabilities) necessary to keep track of your home CD or DVD collection. In the first column, identify the input data required for each of the processes. In the last column, identify a logical name for each output data item ...

### social studies

"how can a collection of statistics be biased?" my friend asked this

### Finance

1- How can management practices speed the collection of receivables? 2-Which management practices tend to slow the collection of receivables? 3-How have recent changes in the banking industry influenced the collection process?

### Elements of Statistics

the world health organization's center of aids research is planning to write a report on aids infection among drug users all of the world. in a recent study conducted on 1,000,000 drug users, 52% indicated that they are using heroin on regular basis, 37% indicated that they ...

### nursing

What is the nurse’s role in data collection, patient privacy, and ethical treatment of human subjects?

### Res/341

what are some ways to reduce bias in focus groups or any data collection method?

### Statistics

Select a random sample of 30 student responses to question 6, "How many credit hours are you taking this term?" Using the information from this sample, and assuming that our data set is a random sample of all Kaplan statistics students, estimate the average number of credit ...

### Statistics

Select a random sample of 30 student responses to question 6, "How many credit hours are you taking this term?" Using the information from this sample, and assuming that our data set is a random sample of all Kaplan statistics students, estimate the average number of credit ...

### BIOLOGY

what is an hypothesis. a. a prediction b.a collection of data c.a possible explanation tha can be tested d. a controlled experiment. i think is d

### statistics

Given the following data: 18,12,18,20,16,20,18,36,16,18, 14,20,24,20,5,18,10,15,24. Determine the mean, median and mode of this data

### Math

How do I set this up and solve it? Tom has a collection of 30 CDs and Nita has a collection of 15 CDs. Tom is adding 1 CD a month to his collection while Nita is adding 4 CDs a month to her collection. Find the number of months after which they will have the same number of CDs.

### Statistics

A set of 50 data values has a mean of 27 and a variance of 16. I. Find the standard score (z) for a data value = 19. II. Find the probability of a data value < 19. III. Find the probability of a data value > 19. Show all work.

### Statistics

Are large or small data sets more appropriate for using perecentiles to summarize data? Why?

### Statistics

A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20

### statistics

A set of 50 data values has a mean of 15 and a variance of 36. Find the standard score of a data value = 30

### statistics

9. Explain the transformation needed to convert the following data to a linear data set. {(1, 0.98), (2, 1.39), (3, 1.71), (4, 1.98), (5, 2.22), (6, 2.43)} (6 points)

### Maths Ms sue

A library opens with a collection of 300 books. During the first week after the opening, an additional ten books are donated to the library’s collection. In each subsequent week, six more books are donated to the library’s collection than were donated in the previous week...

### Maths Please help

A library opens with a collection of 300 books. During the first week after the opening, an additional ten books are donated to the library’s collection. In each subsequent week, six more books are donated to the library’s collection than were donated in the previous week...

### Statistics

A set of 50 data values has a mean of 35 and a variance of 25. I. Find the standard score (z) for a data value = 26. II. Find the probability of a data value > 26.

### statistics

A set of data is normally distributed with a mean of 98 and a standard deviation of 15. What is the probability that the value from the data is less than 88 ?

### Statistics

A researcher determines that 42.7% of all downtown office buildings have ventilation probles. Is this census data or sample data?

### Statistics

start with X=100 and add four x values to make a samle of 5 data such that the standard deviation of these data equals 0

### statistics

The mean of a normally distributed data set is 226.2. The data item, 230, has a z-score of 0.2. Find the standard deviation.

### business

Prepare a 700- to 1,050-word paper in which you describe the use of statistics within your workplace or a company with which you are familiar. Address the following questions in your paper: • How are statistics used in your workplace? • What is one example of descriptive ...

### maths

A library opens with a collection of 300 books. During the first week after the opening, an additional ten books are donated to the library’s collection. In each subsequent week, six more books are donated to the library’s collection than were donated in the previous week...

### statistics

Suppose you have a data set that is normal and with a mean of 78 and a standard deviation of 9. Within what range would you expect to fine 95% of the data?

### statistics

Use the data given to test the following hupotheses. Assume the data are normally distributed in the population. Ho: M=7.48 Ha:m>7.48 xbar = 6.91, n=24, sigma=1.21,alpha=.01

### Statistics

Start with x = 100 and add four x values to make a sample of five data such that the standard deviation of these data equals 0

### statistics

provided with data representing the time it took husbands and wives to run a mile. All data are in minutes Husband Wife 8.2 9.7 8.9 8.5 9.7 8.9 9.8 8 10 9 7.9 7.9 6.7 8 8.9 7.9 12.2 9.9 15 10.2 8.8 8.4 8.9 -- 21 10.4 11.3 9.2

### statistics

Start with x = 100 and add four x values to make a sample of five data such that the standard deviation of these data equals 0.

### statistics

Start with x = 100 and add four x values to make a sample of five data such that the standard deviation of these data equals 0.

### Statistics

Find 3 different research questions and the appropriate data one needs to collect for each, including the level(s) of the data to be collected for each question.

### Statistics

8.Using the following statistics to describe a distribution of data, what is the interquartile range? Minimum = 13 Q1 = 25 Median = 54 Q3 = 72 Maximum = 98 25. 12. 85. 47.

### statistics

Terms and Definitions matching ___ Statistics ___ Discrete variable ___ Statistics ___ Continuous variable ___ Population ___ Qualitative data ___ Population parameters ___ Quantitative data ___ Sample ___ Mean ___ Bias ___ Mode ___ Representative sample ___ Median ___ ...

### Statistics

Use the Empirical Rule to find what two values 95% of the data will fall between for a data set with a mean of 294 and standard deviation of 13.

### Statistics

Is the following classified as interval, ordinal or nominal data? The marks achieved by the students in a statistics course out of 100.

### statistics

You are given the following data. Number of Absences Final Grade 0 95 1 91 2 82 3 69 4 67 5 58 - Find the correlation coefficient for the data. - Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.

### math

gena wants to display her collection of 30 antique puppets in equal sized rows. what are all the combinations for displaying the puppet collection

### Statistics

2. You are given the following data. Number of Absences Final Grade 0 93 1 90 2 79 3 66 4 60 5 56 - Find the correlation coefficient for the data. - Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days. Show all ...

### Math

Me and my grade 8 class are doing project on "data management". in one part it says: Statistical Measure of your choice: Research one other representation of statistics and apply the calculations to your data. Once again, explain what this means within the context of your data...

### finance

An increasing average collection period indicates 1)the firm is generating more income. 2) accounts receivable are going down. 3) the company is becoming more efficient in its collection policy. 4) the company is becoming less efficient in its collection policy.

### statistics

Can someone tell me how to run data in Megastat on attribute values. I have an assignment and I need to get descriptive statistics on education levels

### statistics

The HR department of an organization collects data on employees' age, salary, level of education, gender, and ethnicity. Which data is more likely to follow normal distribution? Why?

### statistics

These data were generated using the equation y = 2x + 1. A scatter diagram of the data results in five points that fall perfectly on a straight line. x 0 1 2 3 4 y 1 3 5 7 9 (a) Find the correlation coefficient.

### statistics

Can you step by srep dumb this down so that I can understand how to get the answer please? A set of 50 data values has a mean of 15 and a variance of 36. Find the standard score of a data value = 21

### Statistics for the Behavioral Sciences

Complete an independent project, collect data from your observation experiment and perform a one-way, between-subjects ANOVA on the data using the definitional formula.Include the following: 1. description of research project that includes the operational definition for the ...

### statistics

Data were collected on 100 students regarding their class and major. The data are summarized in the following contingency table. What is the probability of randomly selecting a sophomore or an undeclared student?

### IT/205

Read “The U.S. Census Bureau Field Data Collection Project: Don’t Count On It” beginning on p. 413 of Essentials of Management Information Systems. Answer the following questions in 200 to 300 words: Dose this mean each question 200 to 300 word or dose it mean the hole ...

### Statistics (Verify My Answers)

If I do a research project and my hypothesis is that attitudes of human services providers towards HIV/AIDS would improve after participation in a program would my sampling method be simple random, stratified or cluster sampling? I think it would be simple random sampling but ...

### Statistics

2. Any given data set consists of a set of numerical values. Please indicate by stating yes or no for each of the following statements whether or not it could be correct for any data set. (This question is not referring to the data that is given above.) a. There is no mode. b...

### math

I believe the answer is 5 months; however, I did it the long way. Explain how to find the answer. Tom has a collection of 30 CDs and Nita has a collection of 15 CDs. Tom is adding 1 CD a month to his collection while Nita is adding 4 CDs a month to her collection. Find the ...

### Elementary Statistics

determine whether the given is a statistics or parameter. 1.) There are 50 capitol states in the US. Answer: Parameter 2.) Among the flights included in the sample of flights in Data set 15 in Appendix B, 21% arrived late. Answer: Statistics

### Psychology

An essential part of scientific thinking is not only how to use statistics correctly, but also how to identify the misuse of statistics. Our textbook authors suggest that students should: Answer distrust all statistics because they convey a false impression of certainty and ...

### Macroeconomics - inflation vs unemployment!!!!

I had to graph both the U.S. inflation and unemployment rates on the same graph between the years 1990-2004. I need to analyze the data. How are the two rates related? How does one affect the other, if so? One way to analyze the data is to put the inflation data on one axis, ...

### statistics

Starting with the data values 70 and 100, add three data values to the sample so that the mean is 96, the median is 97, and the mode is 97

### Statistics

Starting with the data values 70 and 100, add three data values to the sample so that the mean is 81, the median is 91, and the mode is 91. How do i do this??

### Math

Mr.Adams had a coin collection including only nickels, dimes, and quarters He had twice as many dimes as nickels and half as many quarters as he had nickels. If the total face value of his collection was $300.00, how many quarters did the collection contain? A) 75 B) 100 C) ...

### statistics

write a data set that fits the following description. there are 7 numbers in the data set the minimum is 17 the range is 45 the median is 32 the mode is 41

### Statistics

Suppose that for x = 3, the predicted value is y = 7. The data pair (3, 10) is part of the sample data. What is the value of the residual for x = 3?

### Statistics

Please help!! I have no idea how to do this question. 14. A sample of 40 CD’s from your collection showed a mean length of 52.74 minutes with a standard deviation of 13.21 minutes a. Construct the 95 percent confidence interval for the mean. b. Construct the 95 percent ...

### Statistics

Research design is an area where researchers collect various data to address important questions. For example, if researchers wish to find characteristics of people most likely to develop lung cancer, they will have to collect appropriate data first. Investigate 3 different ...

### Statistics

The scatter diagram shows: a. The frequency with which each value occurs in the data. b The values of a variable designed in comparison with the values of a second variable. c. The mean data sets. d. The percentage of data belonging to different ...

### statistics

The data below represents the amount of grams of carbohydrates in a sample serving of breakfast cereal. 10 18 24 30 19 22 24 20 18 25 20 22 19 The variance for this data would be __________ grams.

### AP Chem

A student performs an experiment to determine the enthalpy of neutralization of hydrochloric acid and sodium hydroxide. The student combines 25 mL of equimolar solutions of acid and base, both having an initial temperature of 22.5 C, in an open polystyrene calorimeter. Each ...

### IT Information Systems Technology

Why are database management systems important in the business community? Give atleast two reasons. Let's begin with what a database is. A database is a collection of data records. These records are on your computer and a program is used to access the records, change the ...

### statistics

Come up with a unique way to choose random samples from a specific data set, also explain how you will assign each data item and how each item will be selected