Friday
May 29, 2015

Posts by PsyDAG


Total # Posts: 19,898

Statistics
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.05 each direction) and its Z score = 1.645. 90% = mean ± 1.645 SEm SEm = SD/√n
January 3, 2015

Statistics
See process in your later post.
January 3, 2015

Statistics
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.
January 3, 2015

Statistics
See process in later post. Of course, you can shorten the process if you remember that the mean, mode and median are the same value in a normal distribution.
January 3, 2015

Science
It has to get out of the car first. What does that tell you?
January 2, 2015

language arts
I would pick 2.
January 2, 2015

Biology
Since this is not my area of expertise, I searched Google under the key words "Photosynthesis and cellular respiration" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Photosynthesis+and+cellular+respiration&ie=UTF-8&oe=UTF-8&...
January 1, 2015

biology
Parents are AO and BO. Use a Punnettt square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
December 31, 2014

biology
Since this is not my area of expertise, I searched Google under the key words "mitosis meiosis" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=mitosis+meiosis&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
December 30, 2014

Math/ Statistics
I have no idea what your superscript means. For one-tailed: Ho: µ = 16 oz Ha: µ < 16 oz For two-tailed: Ho: µ = 16 oz Ha: µ ≠ 16 oz
December 30, 2014

Math/ Statistics
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. You can also try: http://davidmlane.com/hyperstat/z_table.html
December 30, 2014

science
Depending on how you shave it, there is a possibility of genital cuts and bleeding. New stubble may cause irritation. No change in growth, but illusion of faster growth with stubble, because you are starting with zero background. For example, 1/4 inch growth with normal length...
December 30, 2014

biology
Since this is not my area of expertise, I searched Google under the key words "mitosis meiosis" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=mitosis+meiosis&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the ...
December 29, 2014

math
How can we describe a situation in your life?
December 29, 2014

statistics
This means that the difference between men and women was significant, P ≤ .05. There is a 5% probability that this difference is caused solely by chance (alpha error), but scientists tend to assume that chance is not acting in this case. Why wasn't there a ...
December 29, 2014

Math
If 2y = 8, then y = 4. Substitute that value into the second equation to find x.
December 28, 2014

6th grade math
It would help if you proofread your questions before you posted them. Do you mean "Sandra ate 4 cups"? Four cups = 20/5 How many times does 4/5 go into 20/5?
December 26, 2014

English
I searched Google under the key word "chagrin" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=chagrin&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find the information you desire more quickly, if you use appropriate key ...
December 24, 2014

economics,tourism,business studies and maths lit
This is a question that is better answered by your high school/college counselor. S/he can administer interest tests and ask specific questions that will allow more specific and accurate answers to your question.
December 24, 2014

6th grade Math
What are your choices?
December 22, 2014

Grade 9th Chemistry needs help
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
December 22, 2014

Spanish II
Compro is first person, not third. You are looking for a pronoun for "libro."
December 22, 2014

statistics
You cannot copy and paste here.
December 21, 2014

Maths lite, business, geography, life science
It would be better to ask you high school/college counselor. because s/he could ask questions and/or give interest tests to answer your question more effectively.
December 20, 2014

Intermediate Algebra
I assume you mean dive. 120 = 16t^2 Solve for t.
December 19, 2014

statistics
Ho: mean = 6' 9" Ha: mean ≥ 6' 9"
December 19, 2014

Science
Since this is not my area of expertise, I searched Google under the key words "respiration vs fermentation" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=respiration+vs+fermentation&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you...
December 18, 2014

Science
No, the daughter cells will still be the diploid number rather than the haploid number.
December 18, 2014

Math help
4L = s 7L + 3.5s = 380 Substitute 4L for s in the second equation and solve for L. Then solve for s. From the values, make your choice of the alternatives.
December 18, 2014

biology
Not sure exactly what you are asking. Gradual mutation? Interbreeding?
December 17, 2014

Cardiovascular, Respiratory, and Digestive Systems
What are your choices? You cannot copy and paste here.
December 17, 2014

Cellular Anatomy/Integumentary and Musculoskeletal
What are your choices?
December 17, 2014

Cellular Anatomy/Integumentary and Musculoskeletal
Choices?
December 17, 2014

programming
We will not help you to hack computers.
December 17, 2014

Math
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. First marble = 5/14 With one less yellow marble, second = 4/13 With another less yellow marble, third = ? Multiply the three ...
December 17, 2014

maths literacy geog business studies bio English a
Your question needs to be much more specific for us to give an adequate response. Your teacher(s) would be able to give much better suggestions.
December 17, 2014

math
It already can be a height measurement. However, 61.125" = 5' 1 1/8" or 5 feet, 1 1/8 inches
December 17, 2014

Statistics
Ho: mean = 8.0 Ha: mean > 8.0
December 17, 2014

math
$7.75/lb.
December 16, 2014

Algebra 1
Using equation, insert one value to see if it calculates to the other.
December 16, 2014

Math
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 2 * 2 1/3 = (2*2) + 2(1/3) = 4 2/3
December 16, 2014

Math
1 thru 9 = 9 10 thru 30 = 21 * 2 = 42 Add the two.
December 16, 2014

math
I am unfamiliar with Excel tools. However, you would be looking for measures of central tendency (mean, mode and/or median) and measures of variability (variance, standard deviation and/or range).
December 16, 2014

statistics HELP!
Assuming that you are using P = .05, 95% = mean ± 1.96 SEm SEm = SD/√n What is the n of your sample?
December 16, 2014

computer math (incomplete)
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
December 16, 2014

Algebra 2
Missing data.
December 16, 2014

Algebra 2
Substitute -2 into each equation and calculate. a. f(x)= 3x +5 = 3(-2) +5 = ? b. f(x) = -5/2x -2 = (-5/2)(-2) - 2 = ?
December 16, 2014

Algebra 2
First, put x = 0 into the equation to find y, then do the same for y to find x.
December 16, 2014

Algebra 1
(-7) (3)- (5)(-3) = -21 - (-15) = -21 + 15 = ?
December 16, 2014

Algebra 1
(x^2 +6) - (3x^2 - 2x -5) = x^2 + 6 -3x^2 + 2x +5 = ? Combine like terms.
December 16, 2014

Math
-2/2 = ?
December 16, 2014

math
3a = c 7a + 3c = 6000 Substitute 3a for c in the second equation and solve for a, then solve for c.
December 16, 2014

Stats
95% = mean ± 1.96 SEm SEm = SD/√n Find the mean first = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation = ...
December 16, 2014

Language Arts
Chapter VIII of what?
December 16, 2014

Science
Which do "you think are most important"?
December 16, 2014

maht
(236-214)/236 * 100 = percent change
December 16, 2014

Statistics
95% = mean ± 1.96 SEm SEm = SD/√n Find the mean first = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation...
December 16, 2014

Psychology
Three — "placebo (0 mg), 10mg, and 20mg of a drug."
December 15, 2014

Stats
(61-14)/14 = ?
December 15, 2014

math
What figures?
December 15, 2014

Any math tutor online? Help
Cannot graph here. 1) 175 + 10n = 250 + 7n Solve for n. 2) numbers < n above
December 15, 2014

urgent help statistic
95% = mean ± 1.96 SEm SEm = SD/√n I'll let you interpret.
December 15, 2014

Science
No, watch out for statements with "always" or "never."
December 15, 2014

Science
Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Online "^" is used to indicate an exponent, e.g., x^2 = x squared. (1.5*10^11)/(3*10^8) = .5*10^3 When exponents are multiplied/divided their values are ...
December 15, 2014

Biology
Good, as far as it goes. At conception, the two haploid cells join to create a diploid cell, the start of a new organism.
December 15, 2014

Biology
Right.
December 14, 2014

Science
Since this is not my area of expertise, I searched Google under the key words "genotype complete incomplete domnance" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=genotype+complete+incomplete+domnance&ie=UTF-8&oe=UTF-8&gws_rd=...
December 14, 2014

Math
8/(8+5+10) = ?
December 14, 2014

SOC 320
What is your question?
December 14, 2014

astronomy
No table. You cannot copy and paste here.
December 14, 2014

program eval
I'm not sure what you mean by "quasi-experimental." What criteria are you using to evaluate the program? Are you having a control group?
December 13, 2014

Math
a = 22,000 - 800 * 12 = ?
December 13, 2014

Confidentiality in Allied Health
If you had a disease, especially a sexual one, would you want that to be common knowledge?
December 12, 2014

Confidentiality in Allied Health
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.
December 12, 2014

math
Check her work?
December 12, 2014

problem solving
What rule/theorem are you considering?
December 12, 2014

problem solving
How do we know what problem you are considering?
December 12, 2014

Math
Vertical and horizontal lines do not have both intercepts. If there are infinite parallel, there are infinite perpendicular.
December 12, 2014

Math
Wouldn't the cost depend on the type of shirt you are buying?
December 11, 2014

nat
Disagree. Notice the word, "but."
December 11, 2014

science
Hemophilia is a recessive X-linked disease. Dad has hemophilia and Mom isa carrier. Extrapolate from that information.
December 11, 2014

math
If you only bought 6 notebooks, how do you get 7 and 5? You need to read the problems carefully. x = 6-y 10x + 8y = 56 Substitute 6-y for x and solve.
December 11, 2014

math 120
It would help if you proofread your questions before you posted them. The information below only applies to a normal distribution. Your data do not indicate a normal distribution. Anything over 1.2 SD below the mean would be negative. 95% = mean ± 1.96 SEm SEm = SD...
December 11, 2014

Problem Solving: Make a Table
(2*40)/5 = ?
December 11, 2014

statistics
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. Multiply by 15.
December 10, 2014

Math
Zero times anything = 0.
December 9, 2014

Algebra 2
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.005) and its Z score = 2.575. 99% = mean ± 2.575 SEm SEm = SD/√n
December 9, 2014

Algebra 2
What conclusions are listed?
December 9, 2014

Algebra 2
90% = mean ± 1.645 SEm SEm = SD/√n
December 9, 2014

Algebra 2
What statements? 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 ...
December 9, 2014

Algebra 2
Still missing data: means, SD?
December 9, 2014

Algebra 2
Missing data.
December 9, 2014

Statistics
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. A .72^4 = ? Either-or probabilities are found by adding the individual probabilities. B. This is saying P of either none using, ...
December 9, 2014

Math
Unmix the number, e.g., 2 1/2 - 1 1/2 = 5/2 -3/2 = 2/2 = 1
December 9, 2014

Statistics
Selecting the Ace leaves 51 cards in the deck. P (K) = 4/51
December 9, 2014

math
Unfortunately, I don't know the relationship between rs and ps, whatever they are.
December 9, 2014

Basic Statistics
Find the mean first = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation = square root of variance I'll let you do the ...
December 9, 2014

statistics
Data missing.
December 9, 2014

Math
3 3/4 = 15/4 If each 1/4 = 20 miles, then 15 * 20 = ? miles
December 8, 2014

Math
60/3 = x/27 Multiply both sides by 27, then divide by 3.
December 8, 2014

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