Posts by mark

Total # Posts: 1,765

1. Statistics

I still am not sure how to proceed with this with the information you gave me. Confused on this one
2. Statistics

Reginald Brown an inspector from the department of weights and measures, weighs 15 eighteen-ounce cereal boxes of corn flakes. he finds their mean weight to be 17.78 ounces with a standard deviation of .4 ounces. are the cereal boxes lighter than they should be? let Alpha = .01
3. statistics

John Davis, a manager of a supermarket, wants to estimate the proportion of customers that will be using food stamps at his store. How large a sample is required to estimate the true proportion to within 3% with 98% confidence?

5. math

A clerk is packing cubes into a box each cube has edges of 6 inches the dimensions of the box are 15 inches by 30 i.ches by 18 inches find how many cubes will fit in the box ? I don't know how to solve and explain how i found my answer please

60,000n
7. Statistics

Think you messed up z=(.526-.47)/sqrt.526*.474/500)it should be Z=(.526-.47)/(.47)(.53)/sqrt 500 = am I right Sir
8. Statistics

Health issues due to being overweight affect all age groups. of children and adolescents 6-11 years of age,18.8% are found to be overweight. A school district randomly sampled 130 in this age group and found that 20 were considered overweight. at Alpha =.05 is this less than ...
9. Statistics

Two groups of climbers (team A and Team B) attempt to climb Mount everest using different routes. The probability of Team A reaching the summit is .70, The probability of Team B reaching the summit is .85. A. Sue calculated the probability the both teams reach the top in the ...
10. statistics

Thank you so much Kuai. This helped me out
11. statistics

If 30% of people in an area are registered voters and 15 people are selected at random from the area: A. what is the probability that at most 3 out of the 15 people are registered voters? B. could we have used the normal approximation to the binomial in part b? Explain why or ...
12. statistics

A basketball scout randomly selected 144 players and timed how long each player took to perform a certain drill. The times in this sample were distributed with a mean of 8 minutes. The population standard deviation was known to be 3 minutes. A. find the critical value for a 95...
13. Math

That does not help calculate the standard of error.
14. Math

LongLast Inc. produces car batteries. The mean life of these batteries is 60 months. The distribution of the battery life closely follows the normal probability distribution with a standard deviation of 8 months. As part of its testing program, LongLast tests a sample of 25 ...
15. Algebra

Calculate 5670 + 3.5% = 198.45 \$198.45 + 5670 = \$5865.45 Hope this helps.
16. statistics

In which of the following situations would it not be appropriate to use a paired t-test to analyze the data? A. A marriage therapist believes that many couples have different perspectives regarding the state of their marriages, prior to the start of couples therapy. In order ...
17. statistics

The average age for licensed drivers in a county is µ= 42.6, σ= 12 and the distribution is approximately normal. A county police officer was interested in whether the average age of those receiving parking tickets in the county differed from that of the average age ...
18. chemistry

How many calories will 45 grams of water release when it changes fom 85c to 30c?
19. Algebra

x over 2x-5 - 5 over 6x-15
20. Calculus Help

I was just reading the last solution and I was wondering why he had the 1/3 before the pir^2h.
21. Math

Their are 18 green blocks in a bag.their are 3 white blocks for every 2green blocks.witch proportion can be used to find w,the total number of white blocks in the bag?

My willy bird is 6 inches and has a mass, M, of 2.1kg. During penetration, it reaches a force or 15.0 N with a coefficient of friction 0.75. Calculate its rotational velocity given no respect to time. How much work is done in a thirty second period?
23. Economics

Suppose Bill is on a low-carbohydrate diet. He can eat only three foods: Rice Krispies, cottage cheese, and popcorn. The marginal utilities for each food are tabulated below. Bill is allowed only 167 grams of carbohydrates daily. Rice Krispies, cottage cheese, and popcorn ...
24. Physics

Find the total change in the internal energy of a gas that is subjected to the following two-step process. In the first step the gas is made to go through isochoric heating until it gains 5363 J and its pressure is 2.92 105 Pa. In the second step it is subjected to isobaric ...
25. Math

Two angles are complementary. Twice one angle plus the other is 96. Find the measure of each angle.
26. Science

If the density of a steel hammer 7gm/cm on earth what would the density be on a spaceship?
27. Science

How many minutes are required for a radio signal to travel for Earth to a space station in Mars if the planet Mars is 7.83 x 10 to the 7th km from Earth?
28. Physics

A 11 kg box slides 4.2 m down a frictionless ramp and then collides with a spring whose spring constant is 250 N/m. What is the maximum compression of the spring? I got 1.35 m but it is incorrect. Any help would be great!
29. math

i put 4000.00 in savings. at end of 3 years the account earned 960.00 in simple interest at what simple interest rate did the account grow? please show me the work.
30. ECE

Flannel board stories encourage the language arts skill of __________ more than other skills. A. listening B. writing C. speaking D. reading
31. Chemistry

Potassium permanganate (KMnO4) solutions are used for the determination of iron in samples of unknown concentration. As a laboratory assistant, you are supposed to prepare 700. mL of a 0.200 M KMnO4 solution. What mass of KMnO4, in grams, do you need?
32. Physics-Kinetic Energy

Can someone help me solve this kinetic energy problem? A 2050 kg truck is traveling east through an intersection at 2.3 m/s when it is hit simultaneously from the side and the rear. (Some people have all the luck!) One car is a 1200 kg compact traveling north at 4.5 m/s. The ...
33. Algebra

What is the domain of this relation? Is it a function? {(2, 7), (0, 3), (-4, 3)} Select one: a. {7, 3}; yes b. {2, 0, -4}; no c. {7, 3}; no d. {2, 0, -4}; yes
34. Algebra

Determine which point, if any, is in the solution half-plane of the two variable inequality. 3x – 2y < 6 Select one: a. (4, 1) b. (-1, -5) c. (1, 0) d. (2, -2
35. math

an open rectagular box with length of 6 feet, width of 4 feet and height of 2.5 feet is to be painted on all exterior sides, including the bottom, with a special waterproof coating. Each gallon of this special coating covers 12 square feet of surface area and costs \$36.00. The...
36. science

56

C.

which of these sentences shows correct comma usage? A.Yes i enjoy writing poetry in my spare time.(I PICK THIS) B.After,a while,i suppose,the boy became less scared of the new girl. C.By the end of the first stanza,i had guessed that the new kid was a girl.(I PICKED THIS) D....

please check answers 7.which of these sentences shows correct comma usage? A.Yes i enjoy writing poetry in my spare time.(I PICK THIS) B.After,a while,i suppose,the boy became less scared of the new girl. C.By the end of the first stanza,i had guessed that the new kid was a ...
40. english(2 Qs)

please answer these 2 questions. please 7..which of these sentences shows correct comma usage? A.Yes i enjoy writing poetry in my spare time. B.After,a while,i suppose,the boy became less scared of the new girl. C.By the end of the first stanza,i had guessed that the new kid ...
41. Social Studies (Ms. Sue)

I only see one answer choice
42. Math

A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards the carpenter notices that he has enough pieces left over to make up the same length as 4 of the original boards. How many boards did the carpenter start with?
43. College Algebra

A compound inequality uses one of the words and or or. Explain how you will determine whether to use the intersection or union when graphing the solution set
44. math

its about phones like att has a monthly fee of \$39.99/mo and 450 anytime minutes which are included in the plan and any additional minutes are \$0.45/min Sprint-has a monthly fee \$34.99/mo and 450 anytime minutes which are included in the plan and any additional minutes are \$0....
45. Mth 209

Choose the TRUE statement(s) about 2 . I) 2 is between 1 and 2 II) 2 is between 1.3 and 1.4 III) 2 is between 1.4 and 1.5
46. college algebra

A circular vent pipe with a diameter of 5.5 inches is place on a roof that has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. roound parameters to the nearest hundreth.
47. College Algebra

A circular vent pipe with a diameter of 5.5 inches is place on a roof that has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. roound parameters to the nearest hundreth.
48. Math

mark has 24 baseball cards .he says that 8/24 are pitchers,5/24 are catchers and the rest fielders.what fraction below represents the difference between the number of fielders and catchers
49. Math

Well, first you have to find out how many are fielders. If 8 are pitchers and 5 are catchers, then the rest are fielders. Simply subtract 8 and 5 from 24. Then you take that number and subtract 5 from it. (Since difference means to subtract. And you're looking for the ...
50. combinatorical mathematics

At Brilli's zoo, she is trying to train a monkey to learn how to count. The monkey is given a stack of cards, numbered 1 to 30, in some random order. The cards are laid out from left to right. Each time the monkey moves the card numbered i+1 to the immediate right of the ...
51. algebra 1

how you get the answer for c?
52. algebra 1

This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
53. algebra 1

Which is the equation of the line that contains the points (0,3) and (-2,4)?
54. algebra 1

Look at the pattern that follows. Which expression represents this pattern algebraically? 8, 17, 26, 35, 44, …
55. algebra 2

The Butler family drives home from a vacation. The table of values that follows shows the relationship between the number of gallons, g, of gasoline their car uses and the distance in miles, d, the car is from home: Gallons of Gasoline Used (g) Distance from Home (d) 1 144 2 ...
56. algebra 1

A manufacturer is cutting plastic sheets to make rectangles that are 11.125 inches by 7.625 inches. Each rectangle’s length and width must be within 0.005 inches. A. Plot the acceptable range of lengths on the number line that follows: B. Write an inequality to represent ...
57. algebra 1

thats what he had for an answer but he thinks a reasonable answer is w= -3 why though? and why is it incorrect?

for |4-3w|>8
59. algebra 1

This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).
60. Spanish

Are my answers correct? If I am wrong please don't give me the answer. Just ask me to try again. My choice marked by *** 1. Yo ______ en Chile y él ______ en Argentina. ***estoy . . . está estamos . . . estoy está . . . está estoy . . . est&...
61. science

Any topic (writer's choice) Research paper Science 3 pages / 825 words Discipline: Science Type of service: Writing from scratch Format or citation style: APA
62. medicine

A physician performed an aspiration via thoracentesis on a patient in observation status in the hospital. The patient has advanced lung cancer with malignant pleural effusion. Later the same day, due to continued accumulation of fluid, the patient was returned to the procedure...
63. Statistics

A camera store sells 40 pairs of binoculars per week on average with a standard deviation of 6. What is the probability that the store will sell more than 52 pairs binoculars in any week?
64. Math

The compatible numbers for 503 and 76 is 500 and 75.

If I divided 1.23x10^-10 and 1.4x10^-8, would my answer be 0.88x10^-18?
66. Math

If I divided 1.23x10^-10 and 1.4x10^-8, would my answer be 0.88x10^-18?
67. Science

What condition is needed for an experiment to have useful data?
68. Science

What condition is needed for an experiment to have useful data?
69. Science

What condition is needed for an experiment to have useful data

71. History

Well say you were applying into a college but you had 15 choices to choice from. However, you had to limit the choices to 5 due to expenses and how far it was from home. So you apply into all 5 colleges and you only get into 1 of those 5 colleges. You go to the college but ...
72. Science

What condition is needed for an experiment to have useful data?
73. Beginner French Work check

Hello! Just wondering if someone could check my work as there were a few areas that i'm not completely confident about. Thank you so much! Complete the sentence with the correct form of the verb in the future. Elle ___sera venu_____ (venir) chez moi ce soir. Nous ...
74. Intro to ethics 120

he outlawing of slavery and extending voting rights to women seem to indicate that ethics can have beneficial results. Give an example from the past that indicates a similar result or a current social policy that might be regarded as wrong, which therefore needs to be changed...
75. physics

Consider an ideal spring that has an unstretched length l0 = 3.9 m. Assume the spring has a constant k = 20 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.7 m from...

D. control
77. economics

Speculate as to why price leadership is legal in the U.S. whereas price fixing is not?

g-fjjsf
79. French

Thank you for the quick response! I have a PC with Windows. Also, i am having a hard time understanding what Direct and In Direct Pronouns i should use when they are in the same sentence. Elle demande le menu au serveur. Elle ___(1)___ ___(2)___ demande 1. le 2. lui Could you ...
80. French

Hello, I am taking a French course online and i just want someone to check some of my work from time to time to make sure i am doing it correctly and to give me any tips they may have. What i have copy and pasted below took me awhile to get so i just wanted a second opinion on...

82. Quantum physics

Anon: 3rd choice foê Q3
83. Quantum physics

Someone know answers for 7th and 10th? Attempts are finishing :(

ayayayaaa
85. Literature

I'm not sure how to write it. I've learned about irony, foreshadowing, symbolism, etc.
86. Literature

HELP PLEASE!!! Can you state the aspect of style revealed in this quote so I can write a paper? "Clyde if I could only die. That would solve all this. And I have prayed and prayed that I would lately, yes I have. For life does not mean as much to me now as when I first ...
87. literature

HELP PLEASE!!! Can you state the aspect of style revealed in this quote so I can write a paper? "Clyde if I could only die. That would solve all this. And I have prayed and prayed that I would lately, yes I have. For life does not mean as much to me now as when I first ...
88. English

The flames slowly grow stronger. Is the word "stronger" used as an adverb modifying the verb "grow."
89. English

Except for a dog he is traveling completely alone. How many adverbs are there? I know "completely " is one . Does it modify is traveling?
90. English

In this sentence -- In this story, a nameless character goes outdoors on a terrible cold day in the Yukon. How many adverbs are there and what do they modify? Is it just "outdoors" and it modifies "goes"
91. Literature

I really need HELP!!! I need a quote for personal connection in American Tragedy by Theodore Dreiser and an explanation of the quote.
92. Stats

A study found that for adults the general self-efficacy scale mean score was 35 and standard deviation was 12. A group of clients (n=14) was measured for their general self-efficacy with the same measure and found having 40 with standard deviation of 20. A group of therapist ...
93. programming Visual Command Prompt

This is the question that I have to do can someone please help?! QUESTION 2 - MANDATORY The file savings.txt contains the names and savings of 3 Bank customers in the last four months. Month1 Month2 Month3 Month4 Dennis Daly 480 620 57 73 Brid Jones 82 61 550 65 Mary Henry 49 ...
94. Psychology

A!! thank you!
95. Psychology

Phyllis is anxious to ride the parachute drop at the park. Her friend, Betsy, feels faint at the thought and does not enjoy watching others ride. These different reactions demonstrate that _______________.   A. perception of stress varies among individuals&#...
96. Psychology

Ralph was the third child born to a family of seven. At times his mother confused his name with those of his five brothers. His was never the tallest, the strongest, the fastest, or the smartest in school. He was also too little to do something or too old to be "acting ...
97. Math

In the Capital Asset Pricing Model, the market risk premium is estimated over a long period of time because: A. more data is always better than less. B. a longer holding period gives a more reliable estimate because it is, in effect, a larger sample size. C. almost all ...
98. Math

In the Capital Asset Pricing Model, the market risk premium is estimated over a long period of time because: more data is always better than less. a longer holding period gives a more reliable estimate because it is, in effect, a larger sample size. almost all investors hold ...
99. General Math

A. rx is the return for a market index such as the S&P 500 Index. B. rx is the return for the stock being analyzed for example, IBM s return if we are estimating IBM s beta. C. the slope measures the average return for the market portfolio for each percentage change in the ...
100. Finance

I think that it is B the risk rate of return plus a risk premium