Thursday
April 24, 2014

Posts by PsyDAG


Total # Posts: 17,540

Math
x = 44-8y 9x-y=31 Substitute 44-8y for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation.

Statistic/Psychology
Do you mean standard error (SEm) or standard deviation (SD). SEm = SD/√n, but no n is indicated. If you meant SD, then use this equation. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution"...

Math Statistics
It seems like you do not have a normal distribution, since the confidence interval goes from .003 below to .013 above .50. The confidence interval is determined by the standard error of the mean (SEm). SEm = SD/√n From your data, you would have an extreme large n. Howeve...

math
It is the relationship of x to y with z factored out.

math
z = 3y x = .1(y+z) = .1(y+3y) = .1(4y) Take it from there.

math
Rectangle is a quadrilateral is a linear figure?

Psychology
http://drdavespsychologypage.intuitwebsites.com/Attribution_Errors.pdf http://drdavespsychologypage.intuitwebsites.com/Attribution_Theory_____Explaining_Behavior.pdf

Psychology
I agree.

Psychology
Again, seek your text or Google for the terms.

Psychology
If you can't find the concepts in your text, try Googling them. I searched Google under the key words "systematic desensitization" to get these possible sources: http://www.google.com/search?client=safari&rls=en&q=systematic+desensitization&ie=UTF-8&oe=UTF-8 In t...

Psychology
Have you looked up each concept? http://drdavespsychologypage.intuitwebsites.com/Compulsions.pdf http://drdavespsychologypage.intuitwebsites.com/Phobias_and_Their_Treatment.pdf

Psychology
Seems like she has both B (thoughts) and A (actions). http://drdavespsychologypage.intuitwebsites.com/Compulsions.pdf

Psychology
http://drdavespsychologypage.intuitwebsites.com/Panic__Don_t.pdf

Psychology
I disagree. http://drdavespsychologypage.intuitwebsites.com/Phobias_and_Their_Treatment.pdf http://drdavespsychologypage.intuitwebsites.com/Phobias__Coping_with.pdf

math
Less. Try examples of doing both, to lead you to your own explanation.

Statistics
A may or may not be true, but B definitely is. Statistics deal with probabilities. You would expect about 95 of 100 to be within the limits, but may not find that exact number.

psychology
Rather than relying on us to answer your questions, look up each school in your text or Google. You will learn more that way. Going through the steps of finding the information will help you remember the data later on an exam.

Statistics
(A-C) Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions/probabilities related to the Z scores. Reverse the process with the 60% (.60). (D) Here you are dealing with a di...

psychology
If "months" is changed to "moments," I would agree with D.

biology
Since this is not my area of expertise, I searched Google under the key words "four methods for studying cerebral lateralization" to get these possible sources: http://www.google.com/search?client=safari&rls=en&q=four+methods+for+studying+cerebral+lateralization&ie=U...

psychology
Do you have choices to pick from? Sort through the evidence and consider all alternatives.

Psychology
Yes, going to the bathroom typically would be a primary drive.

psychology
Definitely. Validity is estimating whether the test measures what it is supposed to measure.

Math
Measure the width and height of the shelves and compare to the sizes of whatever you want to put in them.

anatomy and physiology
Since this is not my area of expertise, I searched Google under the key words "lifestyle factors that affect muscle growth, development, size and or healing of tissue" to get these possible sources: http://www.google.com/search?client=safari&rls=en&q=lifestyle+factor...

statistical analysis
Population?

statistical analysis
Population?

Math
D.

Math
If you had a young teacher, yes. However, the mean is most influenced by deviant scores, so if there are no younger students who skipped to an advanced level, I would say s/he was not included.

Math
mean = ∑x/n 80 = (77+90+66+82+x)/5 Solve for x.

Math
The key word here is your. We do not have your text nor know anything about your job or daily life.

math (incomplete)
We need to know the perimeter of the area.

statistics (incomplete)
We do not have your text with the chapter. However, you need to realize the social security numbers are only a nominal scale. http://drdavespsychologypage.intuitwebsites.com/Two___Two_____four.pdf

stats (Partial)
1. Correct. 2-7. I don't know how to solve without a measure of variability. 8-10. Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine S...

Math
Change to decimals. 25 - 6.67 - 7.75 - 4.5 = ?

Math
6 15/18 - 17/18 = ?

Math
Change all to 12ths, then add.

Math
(4*5)/(5*5) = ?

statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.34) and its Z score (score in terms of SD). A. 68% = mean ± 1 SEm SEm = SD/√n B. 68% = mean ± 1 SD

statistics
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

Statistics
P = probability that rejecting the null hypothesis is due solely to chance. I would agree with b.

Science (?)
What are your choices?

math
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

math
How about blackjack?

math
What is the legal voting age?

Statistics
P = probability that rejecting the null hypothesis is due solely to chance factors. What is your null hypothesis? If Ho = no difference, then I would agree with you.

experimental psychology
Have questionnaires for subjects to explore these phenomena or have behavioral criteria that allow one to infer these phenomena.

Media/Social Science
Since this is not my area of expertise, I searched Google under the key words "theory of Habermas" to get these possible sources: http://www.google.com/search?client=safari&rls=en&q=theory+of+Habermas&ie=UTF-8&oe=UTF-8 In the future, you can find the information you ...

math
Whenever x = 0, value is on Y-axis.

Science
Since this is not my area of expertise, I searched Google under the key words "Transcription and translation" to get these possible sources: http://www.google.com/search?client=safari&rls=en&q=transcription+and+translation&ie=UTF-8&oe=UTF-8 In the future, you can fin...

Stats
Probability of picking pepperoni on the first pick = 1/13. Assuming that customer does not want to "double up" on any topping, 12/13 for first pick for some other topping and 1/12 for second for pepperoni. If the events are independent, the probability of both/all ev...

math-statistics (?)
With your limited data, it is hard to tell. I don't know what the numbers represent. They need to be labeled better.

statistics
Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics text labeled something like "area...

maths (?)
Can you be more specific? Area? Perimeter? Width? Length?

Consumer Math
P = 2L + 2W Room size is irrelevant.

psychology
Cerebral cortex makes rational decisions…usually.

Algebra
Hint: Where is the x?

psy
Have you tried the conditioning theories of Skinner or Pavlov?

math
Just substitute values and calculate. L = 50+11(14)/7+10^2/4(25)

math
A. Let x = years ago 6(15-x) = 40-x Solve for x. B. B = 3J (B+7) +( J+7) = 68 Substitute 3J for B in second equation and solve for J. Insert that value into the first equation and solve for B. Check by inserting both values into the second equation.

math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. O = 1/4 A = 1/3

multiplying
If x=y, then it could be 15x^2 or 15y^2.

statistics
a. mean ± 2 SD = ? b. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. c. Your decision.

astronomy needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.

math
A. Let x = odd, then x+1 = even 4x + 14 = 3(x+1) Solve for x. B. (x + x+1 + x+2 +x+3)/4 = 16 C. (x + x+1 + X+2)/9 = 7 I'll leave you to use a similar process to solve the last one.

college stats (incomplete)
Lacking needed data.

Stats ()
You can answer 1-3 just by citing the data. EVave = sample mean SEave = SEm = SD/√n Z = (score-mean)/SEm Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z ...

com
If you don't have choices, try online or hard copy dictionary.

statistics
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

statistics
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

maths
Your data is only for the maximum temperatures. There is no data on the minimum.

college stats
2. 95% = mean ± 1.96 SEm SEm = SD/√n 3. 90% = mean ± 1.645 SEm 5. Z = (score-mean)/SEm Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z scor...

stats college
Which one has the highest percentage?

Statistics
We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

Math
(10+5)/(20+5) = ?

Math
(A) 2/2 = 1 + 24 = ? (B) 4/2 = 2 + 7 = ? C) 5/3 = 1 2/3 + 2 = ? Add them together. Use the same process with the remaining problems.

Biology
Since this is not my area of expertise, I searched Google under the key words "fennec fox" to get these possible sources: http://www.google.com/search?client=safari&rls=en&q=fennec+fox&ie=UTF-8&oe=UTF-8 In the future, you can find the information you desire more quic...

Math
1 - .3 - .15 = ?

Psychology HELP !
It is asking for what you think.

Bio
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See later post.

Bio
1. Right 2. http://www.google.com/search?client=safari&rls=en&q=metabolism&ie=UTF-8&oe=UTF-8 3. Right

Bio
1. The experimental group receives the independent variable. The control group is similar to experimental, except it does not receive the independent variable. Extraneous variables are balanced between experimental and control groups. 2. http://www.google.com/search?client=saf...

statistics (incomplete)
More data needed.

statistics
Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics text labeled something like "area...

statistics
Have followed the instructions on page 349?

Psychology
Right.

math
1. let x = single rooms x + (3x+8) = 120 2. Let x = helper, then x+5 = mechanic 6(x + x+5) = 114 Solve for x.

math
You're welcome.

math
2x1 + 4x1/10 + 9x 1/1,000 = 2x + .4x + .009x

physics
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question. Since this is not my area of expertise, I searched Google under the key words "acceleration due to gravity formula" to get these po...

statistics (?)
What are your choices?

statistics
Ho: women's level > men's Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics t...

Algebra 1A
Although these suggestions are not specifically related to math, I hope they will be helpful. http://drdavespsychologypage.intuitwebsites.com/Learning_Requirements.pdf http://drdavespsychologypage.intuitwebsites.com/Learning_Hints.pdf http://drdavespsychologypage.intuitwebsite...

business communcation
If those are your choices, A.

Statistics (?)
I don't know how you define "simulations." If it is the number of intervals, A would be the answer.

Statistics
Whatever year the percent was less than the maximum of the confidence interval of 20%, 2000 and 2003.

Physics needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.

Psychology
Agree with 1 and 2. However, once aware of symptoms and concerns, I would suggest ruling out organic disorders.

math
a) 13/52 = ? b) 13/52 = ? c) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. d) one card not a diamond = (52-13)/52. Take it from here.

physics needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.

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