Tuesday
July 22, 2014

Posts by robbie


Total # Posts: 122

math
solve and graph 4x+3y=6

School
There are 7 cupcakes for the party. Each cupcake has 1 candle for each year of the birthday boy's age. There is also an extra candle on each cupcake for good luck. If 49 candles were used on the cupcakes, how old is the birthday boy? Explain.

science
if a DNA virus infects a cell, why must it produce RNA?

statistics
A repeated-measures study uses a sample of n = 20 participants to evaluate the mean differences among three treatment conditions. In the analysis of variance for this study, what is the value for dfbetween treatments?

statistics
For an experiment involving 2 levels of factor A and 4 levels of factor B with a sample of n = 5 in each treatment condition, what is the value for dfwithin?

statistics
For an experiment involving 2 levels of factor A and 4 levels of factor B with a sample of n = 5 in each treatment condition, what is the value for dfwithin?

statistics
Which of the following is used to calculate the degrees of freedom for the A x B interaction? a. dfbet. treatments – dfA – dfB b. dfA – dfB c. dfwithin – (dfA + dfB) d. dfbet. treatments – dfwithin

statistics
For an experiment involving 2 levels of factor A and 4 levels of factor B with a sample of n = 5 in each treatment condition, what is the value for dfwithin?

statistics
A repeated-measures study uses a sample of n = 20 participants to evaluate the mean differences among three treatment conditions. In the analysis of variance for this study, what is the value for dfbetween treatments?

statistics
A researcher used an analysis of variance to compare three treatment conditions with a separate sample of n = 8 participants in each treatment. The results of the analysis are shown in the following summary. Fill in all missing values in the table. (Hint: Start with the df val...

statistics
A researcher uses an analysis of variance to test for mean differences among three treatment conditions using a sample of n = 8 participants in each treatment. What degrees of freedom (df) would the F-ratio from this analysis have? a. df = 23 b. df = 2, 23 c. df = 3, 21 d. df ...

statistics
A researcher reports an F-ratio with df = 2, 36 from an independent-measures research study. Based on the df values, how many treatments were compared in the study and what was the total number of subjects participating in the study? a. 2 treatments and 37 subjects b. 2 treatm...

statistics
An analysis of variance is used to evaluate the mean differences for a research study comparing three treatments with a separate sample of n = 6 in each treatment. If the data produce an F-ratio of F = 4.10, then which of the following is the correct statistical decision? a. R...

statistics
For an independent-measures ANOVA comparing three treatments with a sample of n = 5 in each treatment, what is the critical value for the F-ratio using α = .05? a. 3.88 b. 3.49 c. 3.74 d. 3.34

statistics
An analysis of variances produce SSbetween = 30, SSwithin = 60, and an F-ratio with df = 2, 15. For this analysis, what is the F-ratio? a. 30/60 = 0.50 b. 60/30 = 2.00 c. 15/4 = 3.75 d. 4/15 = 0.27

statistics
For which of the following situations would a repeated-measures research design be appropriate? a. comparing mathematical skills for girls versus boys at age 10 b. comparing pain tolerance with and without acupuncture needles c. comparing self-esteem for students who participa...

statistics
An independent-measures study with n = 6 in each sample, produces a sample mean difference of 4 points and a pooled variance of 12. What is the value for the t statistic? a. 1 b. 2 c. 4/√2 d. 4/√8

statistics
The alternative hypothesis for an independent-measures t test states ______. a. There is no mean difference between the two populations being compared. b. There is no mean difference between the two samples being compared. c. There is a non-zero mean difference between the two...

statistics
An independent-measures study with n = 6 in each sample, produces a sample mean difference of 4 points and a pooled variance of 12. What is the value for the t statistic? a. 1 b. 2 c. 4/√2 d. 4/√8

statistics
A normal distribution has a mean of 36 and standard deviation of 4. What proportion of the distribution consisted of scores between x=34 and x=38? a, 0.6915 b, 2(0.3085)=0.6170 c, 0.1915 d, 2(0.1915)=0.3930

statistics
A researcher administered a treatment to a sample of participants selected from a population of 80. If the researcher obtains a sample mean of M=88. Which combination of factors is most likely to result in rejecting the null hypothesis? a, alpha level=0.01 and standard deviati...

statistics
A normal distribution has a mean of 100 and standard deviation of 20. What is the probability of randomly selecting a score less than 130 from this distribution? a, p=0.9032 b, p=0.9332 c, p=0.0968 d, p=0.0668

statistics
Under what circumstances can a very small treatment effect still be significant? a, if the sample size (n) is very large b, if the sample standard deviation is very large c, if the standard error of M is very large d, all of the other factors are likely to produce a significan...

trig
Solve for x please? x/x+3 - 1/x+2 = x/2x+4

Statistics
A set of X and Y scores has SSx=10, SSY=20, and SP=8, what is the slope for the regression equation? a, 8/10 b, 8/20 c, 10/8 d, 20/8

Statistics
For the regression equation, Y=bX+a, which of the following X,Y points will be on the regression line? a, a,b b, b,a c, 0,a d, 0,b

statistics
A set of X and Y scores has Mx=4, SSx=10, MY=5, SSY=40, and SP=40. What is the regression equation for predicting Y from X? a, =0.25X-4 b, =4X+4 c, =X-6 d, =4X-11

Statistics
A set of X and Y scores has SSx=10, SSY=20, and SP=8, what is the slope for the regression equation? a. 8/10 b. 8/20 c. 10/8 d. 20/8 For the regression equation, Y=bX+a, which of the following X,Y points will be on the regression line? a. a,b b. b,a c. 0, a d. 0, b

statistics
A vertical line is drawn through a normal distribution at z = 0.50, and separates the distribution into two sections. What proportion of the distribution is in the larger section? a. 0.6915 b. 0.3085 c. 0.1915 d. 0.3830

statistics
What z-score values form the boundaries for the middle 60% of a normal distribution? a. z = +0.25 and z = –0.25 b. z = +0.39 and z = –0.39 c. z = +0.52 and z = –0.52 d. z = +0.84 and z = –0.84

Statistics
John drives to work each morning and the trip takes an average of μ = 38 minutes. The distribution of driving times is approximately normal with a standard deviation of σ = 5 minutes. For a randomly selected morning, what is the probability that John’s drive to ...

homework help
which of the following are in the correct size order? a) nm, um, cm, mm, m b) m,um,cm, nm, mm c) um,nm,mm,cm,m d) nm,um,mm,cm,m e) none of the above

homework help
which temperature is colder? a) 50F b) 50C

Algebra 2
If Graham runs up 6 steps of the escalator, then it takes him 46.5 seconds to reach the top of the escalator. If he runs up 13 steps of the escalator, then it takes him only 36.0 seconds to reach the top. How many seconds would it take Graham to reach the top if he did not run...

Physics
What is the roll-off rate of the filter described with R = 2.2k and C = 0.0015 picofarad?

Engineering
What is the upper tripper point (UTP) of a comparator with hysteresis if R1 = 47 kÙ, R2 = 68 kÙ and the maximum positive output voltage is 10V?

Physics
What is the upper tripper point (UTP) of a comparator with hysteresis if R1 = 47 kÙ, R2 = 68 kÙ and the maximum positive output voltage is 10V?

math
The team won 16 of its 28 games. What was the team’s won-lost ratio?

English Complements
CALM! So its a predicate adjective

English Complements
The sea appearred calm in the morning. Identify the complements?

Math
There is a safe bond B which has 4 years before maturity and pays a coupon of 12% at regular annual intervals and a face value of $100 at maturity. (a) What will be the current price of bond B?

Math
he current term-structure of spot interest rates for safe zero-coupon bonds is as follows: Maturity, in years Interest rate(r) 1 8% 2 10% 3 11% 4 12% 5 13% There is a safe bond B which has 4 years before maturity and pays a coupon of 12% at regular annual intervals and a face ...

economics
The current term-structure of spot interest rates for safe zero-coupon bonds is as follows: Maturity, in years Interest rate(r) 1 8% 2 10% 3 11% 4 12% 5 13% There is a safe bond B which has 4 years before maturity and pays a coupon of 12% at regular annual intervals and a face...

Math
Term-structure of interest rates and Arbitrage The current term-structure of spot interest rates for safe zero-coupon bonds is as follows: Maturity, in years Interest rate (r) 1 8% 2 10% 3 11% 4 12% 5 13% There is a safe bond B which has 4 years before maturity and pays a coup...

algebra
GRAPH .08.04.11<3

math
Name the corresponding part if polygon WXYZ polygon PQRS. QP =

math
Name the corresponding part if polygon WXYZ polygon PQRS. YZ =

math
Two angles are complementary. One of the angles is twice the other. The larger angle has a measure of

math
Given: l | | m m∠4 = 105° and m∠6 = 50°. m∠2 =

math
Two angles are complementary. One of the angles is twice the other. The larger angle has a measure of

math
If P(-2, 1) is rotated 90°, its image is

math
Given a dilation with the origin O (0, 0), by observation determine the scale factor "K." DO, K = (5, 0) (10, 0) The dilation an expansion. true or false

math
A reflection maps the point (2, 3) to the point (-2, 3). It is a reflection over the

math
For the transformation T, what is T-1? T : (x, y) (x + 4, y + 3) T-1: (x, y)

math
If a translation maps point (3, 2) to (4, 5); or T : (3, 2) (4, 5), indicate the image for (2, 4).

accounting
: Are there any differences between the organizations that adopt a particular accounting method? Please explain your answer.

Chemistry
What is the maximum mass of the lower molar mass product that can be formed when 71.0 g of solid barium bromide and 44.5 g chlorine gas react?

algebra 1
plz explain how to do this in detail: using only 39 cent and 24 cent stamps, charlie put $7.14 postage on a package he mailed to his sister. if he used twice as many 39 cent stamps as 42 cent stampsp, how many 24 cent stamps did he use??

Math
well each nuumber equals: 3.14, 5, .15, 3.873, and 2.5 now put them in order from least to greatest: .15 2.5 3.14 3.873 5 the median is 3.14 because you cancel one from each side each time... take off .15 and 5, then 2.5 and 3.873 as you can see, 3.14 is directly in the middle...

math
can someone help explain how to do this? allen has nickels dimes and quarters in his pocket. the number of nickels is 1 more than twice the number of quarters. the number of dimes is 1 less than the number of quarters. if the value of change in his pocket is 85 cents, how many...

mat/117
can someone please help me fiqure this out. factoring polynomials (C-5)-^2

mat/117
what would be the answer

mat/117
can some one help with this polynomial. (C -5)-^2

algebra 1A
solve please on a line graph y-5>-18

algebra 1a
Help and explain please 9m+n=22 m-3n=18

algebra 1a
can someone help in solving this and use set builder notations to describe the solution Please 4(8-2x)+2x<5(9+3x)

mat/116
Thanks you guys for the past help, but I am stuck on this line graphing. So can someone help in solving and graphing this compound inequality. 9x+1>= -53 or 4x+3>= -9 what would the solution {xlx>...}be.

mat/116
can someone help me in determining wether these numbers are a solutions of this inequality. y-11>2y-2 3,-16,-17,-1

mat/116
can someone help in finding the ordered pair for this equation. 7x-9y=63 9y-7x=-63

algebra 1
can someone show me how to graph this x+4y=8

algebra1
Find the domain of the function g(x)= 4/3-5x I am sorry this is a fraction

algebra 1
find the slope intercept equation of the line that has the given characteristics. slope 6.7 and y intercept (0,-7) Thanks.

algebra 1
graph the equation by plotting points y= -3

algebra1
can someone help me with the addition and multiplication principle with this equation. 2.4 + 22.0 > 55.0 - 8.6x

algebra
can someone explain and answer this equation for me. 7y - 6 < 6y -1 Thanks

algebra 1
can some one please help me with this equation using the addition principle -9/5 + x = -2/9 Please explain how you got your answer in all phases. Thanks

algebra 1
Hi Ms. Sue again, I hate to be a pest but how did you get the two in 2/10, I am really brain dead today.

algebra 1
Hi Ms. Sue can you tell me how you got 2/10 in the equation that I submited a few min. ago the equation was, x + 7/10 = - 1/5

algebra 1
I need someone to help me fiqure this equation out and then explain how you got the answer. x + 7/10 = -1/5

algebra 1
use multiplying by 1 to find an expression equivalent to 11/14 with a denomenator of 56c the equivalent expression is-----

algebra 1
multiply -2.7(-26)=

algebra 1
how do you find the answer to 5.5x = 55.0

algebra 1
5.5x=55.0 using the mutiplication principle. Oh by the way thanks Bob and Sue, you don't know how much you have helped me.

algebra 1
Determine which real number corresponds to the situation. The record low temperture for a date is 25.6 degrees below zero. The corresponding number for this sentence is-----.

algebra 1
can you help with this one -7 - (-2)=

algebra 1
can you divide (9)* (9)= if so what would the answer be

algebra 1
what is the solution for this equation -9/16 - 7/16 =

algebra
use multiplying by 1 to find an expression equivalent to 11/14 with a denominator of 56c the equivalent expression is

economics
You are planning to estimate a short- run production function for your firm, and you have collected the following data on labor usage (L) and output (Q): Labor usage Output 3 1 7 2 9 3 11 5 17 8 17 10 20 15 24 18 26 22 28 21 30 23

economics
Gamma Corporation, one of the firms that retains you as a financial analyst, is considering buying out Beta Corporation, a small manufacturing firm that is now barely operating at a profit. You recommend the buyout because you believe that new management could substantially re...

7th math
a/7 x 42/a

algebra
The equations are 6.5x + 8.3y + 7.1 = 0 and -7.2x + 3.4y - 6.6 = 0. Find the slope and x and y intercepts of each equation. For the first equation I got the x intercept as -10.92 and y intercept as -8.55 but I can't figure out the slope. For the second one i got the x as -...

Chemistry I
A block of aluminum with a volume of 96.6 cm3 absorbs 66.6 J of heat. If its initial temperature was 32.5 °C, what is its final temperature? (density of aluminum = 2.70 g/cm3

Chemistry I
25.0 mL of ethanol (density = 0.789 g/mL) initially at 4.2°C is mixed with 35.7 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?

Chemistry I
When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 24.0 fluid ounce drink from 75°F to 35°F, if the heat capacity of the drink is 4.18 J/g·°C? (Assume that the heat transfer is 100% efficient.)

pre algebra
Find the five-number summary of the following set of numbers14, 5, 13, 17, 6, 15, 6, 3, 11, 6?

HCS438
the o.2 value the number frequency that occur in that category

body organs
the bodys ongoing process of regulating the internal enviroment electrolyte balance blood chenistry temperature and so on is called

9th grade -physical science
a the top of a hill a rollercoaster has 67,500j of kinetic energy and 290,000j of potential energy. gradually the roller coaster comes to a stop due to friction. if the roller coaster has 30,000j of potential energy when it stops, how much heat energy is generated by friction ...

9th grade
at the top of a hill a rollercoaster has 67,500j of kinectic energy and 290,000j of potential energy. gradually the rollercoaster comes to a stop due to friction. If the rollercoaster has 30,000j of potential energy when it stops, how much heat energy is generated by friction ...

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