Sunday

April 20, 2014

April 20, 2014

Total # Posts: 17,499

**Math**

Your hundredths digit cannot be greater than 9. If thousandths digit = x, then tenths digit = 2x. x + 2x = 9 --> .693 x + 2x = 6 --> ? x + 2x = 3 --> ?

**Statistics**

1000.9 seconds = 16.68 minutes a. They are all on the mean. b. Distribution is extremely skewed. c. SD = √variance, but it is only an accurate estimate of variability for a normal distribution.

**kaplan (incomplete)**

No chart. Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.

**Chemistry needs help**

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

**chemistry needs help**

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

**physics needs help**

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

**physics needs help**

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

**statistics**

There is a lot of variability in the losses. 68% lost between $25 and $375. Below Z = -1.2, 11.51% lost nothing.

**reproduction**

Actually the woman's body does reject the sperm, that is one of the reasons why, of the millions of sperm in the ejaculate, only a few reach the ovum.

**Math**

Sorry that I missed the difference in units. 10.5 inches = 26.67 cm.

**Math**

If your data are correct, I don't see anything you are doing wrong.

**psychology**

Anxiety attack or panic attack.

**Psychology**

Not smoke, maintain/develop social contacts, have goals to attain, stimulate mind would be some others. http://drdavespsychologypage.intuitwebsites.com/Aging_Successfully.htm Don't just copy the material. Express the ideas in your own words. Although this will take more ti...

**statistics & probability**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. (1-.30)^8 = ?

**public speaking**

A communicator, an receptive audience and some medium of communication (oral, written, etc.).

**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 Z = (score-mean)/SD Find ...

**math**

Gender and ethnicity rare only nominal scales, so they are eliminated. http://drdavespsychologypage.intuitwebsites.com/Two___Two_____four.pdf Others might depend on the type of organization you are discussing. Salaries are likely to be positively skewed (pulled out to the righ...

**Statistics**

99% = mean ± 2.575 SEm SEm = SD/√n I'll let you do the calculations.

**statistics**

The only indication you have for the mean is what?

**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**

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**

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 your last post.

**math 4th grade (?)**

What is your question?

**Psychology**

Several things need to be considered. How strongly do they hold these values? Are their "stated religious beliefs" internalized? In other words, are they their own values or are they just repeating what they have been taught? Do they believe that one taboo behavior n...

**statistics (incomplete)**

What is your question?

**Science**

Are the roots still there to hold the soil?

**math**

If 18 like both, then (30-18) like just chocolate and (25-18) like vanilla. 50 - 18 - 12 - 7 = ?

**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 c...

**Math**

If 1/4 inch = 1 foot, then one side would be 60 times 1/4 inch and the other would be 28 times 1/4 inch.

**math**

From your data, either 876 or 976.

**statistic of behavioral science**

Z = (score-mean)/SD Which test has the highest Z score?

**math stats**

Before you have gathered any data, these would be your hypotheses. Ho: p1 = p2 Ha: p1 ≠ p2

**Math**

.08($5,900) = ?

**statistics**

a. Customer bills 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. 95% = mean ± 1.96 SD d. Calculate Z score and proport...

**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**

If P ≤ your critical value, you would reject the null hypothesis.

**Psychology**

http://drdavespsychologypage.intuitwebsites.com/Person_Perception__East_vs__West.pdf Don't just copy the material. Express the ideas in your own words. Although this will take more time and effort, you will learn more.

**math help (?)**

Need to be accompanied by the original problem.

**math check**

Your answers to both problems are wrong. I am assuming your n is the 20 jars from the second question. SEm = SD/√n = 9/√20 = 9/4.47 = ? Z = (score-mean)/SEm Find table in the back of your statistics text labeled something like "areas under normal distribution&...

**Math**

b) mean = median = mode. See definition of median. e) Z = (score-mean)/SD for raw scores. Answer wrong. Z = (score-mean)/SEm for means. Answer wrong. SEm = SD/√n = 4.6/√25 = 4.6/5 = .92 f) Use same process. Use Table indicated in later post.

**statistics (incomplete)**

Probability must always be one or less. Need more and accurate data.

**math**

Matched groups?

**Statistics**

Assuming a normal distribution: Z = (score-mean)/SEm SEm = SD/√n = 500/√100 = 500/10 = 50 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.

**Statistics**

With this data, best estimate = 23.

**biology (?)**

Even if we knew what you were talking about, we have no access to whatever diagram you are seeking.

**math**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. a) .3^2 * .7^3 = ? b) Same as 1, 2 or 3 people agreeing. for one: .3 * .7^4 = ? for two: see above for three: .3^3 * .7^2 = ? Ei...

**math**

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.

**Math**

Looks fine to me.

**math (incomplete)**

no sets given.

**math check**

If the values are in the tens of thousands of dollars, how do you get a total value of $35.60?

**Psychology**

I am not completely sure about this, but it looks like the best answer.

**MATH HELP**

2) SEm = SD/√n e) 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 score.

**Psychology**

Agree

**Psychology**

Try again

**Psychology**

Do not agree.

**Psychology**

Agree

**Psychology**

Agree

**Psychology**

Agree.

**statistics**

Z = (score-mean)/SEm SEm = SD/√n I'll let you do the calculations.

**stats**

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 for the Z scores. Multiply by 100 for percentages.

**stats**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. In a normal distribution, mean = mode = median. What is the definition of median?

**Math**

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 scores. Multiply probability by 100 to get percentage.

**PSYCHOLOGY IN SOCIAL LIFE**

http://drdavespsychologypage.intuitwebsites.com/Stress__A_Type_Personality.pdf

**PSYCHOLOGY IN SOCIAL LIFE**

Right

**Statistics (incomplete)**

More data needed.

**Algebra 2..**

112/grand total = ?

**Statistics (partial)**

"Standard deviation of the distribution of sample means" = SEm = SD/√n Since I don't use a calculator, I can't help you there.

**statistics**

The probabilities are based on a normal (not skewed) distribution. Calculations will be in error, depending on the degree of skewness.

**general knowledge**

As far as I know there is no "opening in the bottom of a soup dish," otherwise all the soup would leak out.

**general knowledge**

Without knowing the context, it is hard to define. Since this is not my area of expertise, I searched Google under the key words "intelligent skeleton" to get these possible sources: http://www.google.com/search?client=safari&rls=en&q=%22intelligent+skeleton%22&ie=UT...

**maths**

Combine the whole numbers and change the fractions to 30ths to solve.

**maths**

Change all to twelfths and solve. 10/12 + 6/12 - 9/12 = ?

**Math help**

a) 99.7% = mean ± 2.96 SEm SEm = SD/√n b) SEm = SD/√n c) See a.

**math check**

Since the score is below the mean, Z will be negative.

**science (incomplete)**

What "is shown"?

**math**

1% = .01 4/5 = 8/10 = .8 .8 of 1% = .008 20 1/4% = 20.25% To write as decimal, move decimal point two spaces to left and round.

**science (incomplete)**

We do not have the values.

**Physics needs help**

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

**Physics needs help**

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

**Statistics (incomplete)**

What are your choices? Z score of zero is on the mean. Does that help?

**Statistics**

In a normal distribution, mean = median = mode.

**math**

1. $40(40) + $45(18) = ? 2. 36,201 + 29,028 = ? 3. I don't know what "Php" means nor the costs of operating.

**maths**

With or without buttons, add 6 to both sides. 5x = 15 Divide both sides by 5.

**math help**

Does x = raw score or mean? If raw score: Z = (score-mean)/SD If mean: Z = (score-mean)/SEm SEm = SD/√n In both cases, find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of Z.

**math help**

Between 40 and 52. Use process indicated in later post.

**math check and help**

a) correct b) SEm = SD/√n = 40/√46 = 40/6.7823 = 5.8977 = 5.90

**Statistics**

Use same process as previous post.

**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 (.52) and its Z score. Insert in above equation and solve for score.

**Finite Math**

Not distribution. Without replacement, If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. first black ball = 4/6 second black ball = 3/5

**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.

**algebra (incomplete)**

What graph?

**algebra**

An independent variable is the potential stimulus or cause. What fits?

**math help**

a) 90% = mean ± 1.645 SEm SEm = SD/√n b) 98% = mean ± 2.33 SEm

**Chemistry needs help**

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

**college algebra**

1. 37.5 - 12 = ? 2. 9/5(85) + 32 = ? That is the conversion formula from centigrade/Celsius to fahrenheit.

**Rounding**

Unless there are typos, "164 to nearest hundredth"= 164.00.

**PSY 369**

Positive. Those who consistently watch violent porn are more likely to turn fantasy into reality. More violent porn stores mean that they must have customers to make sales profitable.

**Statistics**

A) Z = (score-mean)/SD B) Z = (score-mean)/SEm SEm = SD/√n For both, 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.

**Quantative Method (?)**

Need data.

**Statistics help**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.3989, .4875, .3628) related to your Z scores.

Pages: <<Prev | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | **19** | 20 | 21 | 22 | 23 | 24 | 25 | Next>>