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I need help passing my test. Well its a open book test when
Well its a open book test when I pulled up your site there is a list of all the questions . How do I retrieve the answers? … read more
GLENN GILONGOS
GLENN GILONGOS
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I need help with these questions:JA: The Tutor can help you
A formal statement that there is an absence of relationship between variables when tested by a researcher is called: Null hypothesis Type I error Type II error Negative interval 1 points Saved QUESTION 2Bivariate statistics refers to the statistical analysis of the relationship between two variables. True False 1 points Save Answer QUESTION 3Positive relationships between two variables indicate that, as the score of one increases, the score of the other increases. True False 1 points Save Answer QUESTION 4A result that is probably not attributable to chance is: Type I error Type II error Statistical significance In the semi-quartile range 1 points Save Answer QUESTION 5A score that is likely to fall into the middle 68% of scores of a normal distribution will fall inside these values: . +/- 3 standard deviations +/- 2 standard deviations +/- 1 standard deviation semi-quartile range 1 points Save Answer QUESTION 6It is important to assess the magnitude or strength of a relationship because this assists you with deciding whether or not a variable A causes variable B. True False 1 points Save Answer QUESTION 7In a negative relationship, as the score of one variable decreases, the score on the second variable decreases. True False 1 points Save Answer QUESTION 8A set of subjects, usually randomly sampled, selected to participate in a research study is called: Population Sample Mode Group Partial Selection 1 points Save Answer QUESTION 9A perfect negative relationship between two variables is expressed as r=0. True False 1 points Save Answer QUESTION 10When examining the relationship between a nominal variable and an interval or ratio variable, you would create a table using the nominal variables, calculate the mode and median of the interval or ratio variable, then make a decision regarding the relationship using the mode and median. True False 1 points Save Answer QUESTION 11A Z score of +/-1.96 is equivalent to these values on a normal distribution. Critical region +/-1 standard deviation +/-2 standard deviations +/-3 standard deviations 1 points Save Answer QUESTION 12An assumption used by statisticians which states that population parameters are normally distributed: Central Limit Theorem Null Hypothesis Statistical significance Standard deviation 1 points Save Answer QUESTION 13When examining the relationship between two interval or ration level variables, you can use a scatterplot to allow you to visualize the relationship between the two. True False 1 points Save Answer QUESTION 14Correlation coefficients, r, range from -1.00 to +1.00. True False 1 points Save Answer QUESTION 15An entire set of individuals or objects having some common characteristics is: Sample Population Median Group Complete selection 1 points Save Answer QUESTION 16Data which uses number values, has an equal distance between values, and has a possible absolute zero is: Interval Nominal Ordinal Ratio 1 points Save Answer QUESTION 17To determine the proportion of variability in one variable that can be accounted for or explained by the variability of a second variable, you would calculate a correlation coefficient, then square it. True False 1 points Save Answer QUESTION 18A significant finding with the 2 sample t-test indicates a strong relationship exists between the 2 population means. True False 1 points Save Answer QUESTION 19Data which uses number values with an equal distance between values are: Nominal Ordinal Normal Interval 1 points Save Answer QUESTION 20Data which uses numbers to provide categories or labels as well as the ordering of the categories are: Nominal Ordinal Ratio Interval 1 points Save Answer QUESTION 21Not all variables retained in a regression model are required to be significant. True False 1 points Save Answ… read more
GLENN GILONGOS
GLENN GILONGOS
Master of Mathematics
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I have 18 question that needs answer. i do not have a scan,
I need the following questions answered by 10/1/2011 at 8pm EST. Researchers are conducting a state wide survey for the U.S. postal service. the survey records many different variables of intrest. whi… read more
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Time Remaining 1. A quality control officer samples the number
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R.R. Jha
R.R. Jha
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**FOR RRJha**1. A distribution with an equal mean, median,
**FOR RRJha** Due tonight at 11:00 pm 1. A distribution with an equal mean, median, and mode is said to be: (Points : 1) Bimodal Symetrical Unimodal Both Symtrical and Unimodal 2. The strength of a co… read more
R.R. Jha
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Please see my attached spreadsheet. I took the student scores
Please see my attached spreadsheet. I took the student scores and I ran descriptive statistics on them. As stated in the problem the median and mode are 3.7 but the mean is 3.22. Also of interest is t… read more
muvee
muvee
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Using Excel, prepare a frequency distribution from the data ...
Using Excel, prepare a frequency distribution from the data you've been collecting. Calculate the Standard Deviation of your data. Is this a normal distribution? What are the implications? Show your w… read more
Scott
Scott
MIT Graduate
Master's Degree
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You are the production manager for an operation that ...
You are the production manager for an operation that produces circuit boards. Each board is tested at the end of the manufacturing process. Rejected boards are discarded and have no future value. For … read more
Scott
Scott
MIT Graduate
Master's Degree
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1. The mean, median, and mode are the most common measures
1. The mean, median, and mode are the most common measures of dispersion (spread). _____(T/F) 2. Each set of data has four quartiles; they divide the ranked data into four equal quarters. _____ (T/F) … read more
the prof
the prof
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1. The mean, median, and mode are the most common measures
1. The mean, median, and mode are the most common measures of dispersion (spread). _____(T/F) 2. Each set of data has four quartiles; they divide the ranked data into four equal quarters. _____ (T/F) … read more
the prof
the prof
computing consultant
Master's Degree
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14. Describe in your own words what is meant by line of ...
14. Describe in your own words what is meant by “line of best fit”. 15. In your own words, state the primary purpose of: a. linear correlation analysis b. regression analysis 16. You are given the fol… read more
abozer
abozer
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1. A health magazine presented results of a recent study
1. A health magazine presented results of a recent study that analyzed data collected by the U.S. Census Bureau in 2000. Results reveal that for both men and women in the United States, heart disease … read more
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true or false1.The mean, median, and mode are the most
true or false 1.The mean, median, and mode are the most common meaures of dispersion (spread). 2. Each set of data has four quartiles; they divide the ranked data into 4 equal quarters. 3. The standar… read more
abozer
abozer
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3. For a particular sample of 50 scores on a psychology ...
3. For a particular sample of 50 scores on a psychology exam, the following results were obtained. a) Mean = 78 Midrange=72 Third quartile=94 Mode=84, b) Median=80Standard deviation=11 Range=52 First … read more
abozer
abozer
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i have about 30 questions to turn in but i have a meeting ...
i have about 30 questions to turn in but i have a meeting to go to and cant get them in on time. how much would you like me to put in for you to answer these basic statistic questions… read more
Scott
Scott
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Which of the following statement(s) about the normal
1. Which of the following statement(s) about the normal probability distribution is/are true? a. 0The mean equals the mode and the median b. 0The median equals the mode c. 0The mean divides the distri… read more
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1. Which of the following statement(s) about the normal
1. Which of the following statement(s) about the normal probability distribution is/are true? a. The mean equals the mode and the median b. The median equals the mode c. The mean divides the distribut… read more
mathsmart
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are the mean mode and median the same in t distributions
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Selah R, M.S. LPC
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