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Post a New Question | Current Questions | Live Experts
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| Babies love statistics! |
Homework Help: Math: Statistics
Recent Homework Questions About Statistics
Post a New Question | Current Questions
| Statistics |
| A raffle is being conducted with 50 tickets to be sold - one per customer. There are three prizes to be awarded. If the four organizers of the raffle each buy one ticket, what is the probability that the four organizers win: a) all of the prizes? b) exactly two of the prizes c... |
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| statistics |
| President Obama wants to provide aid to people who are having a rough time. Year 2007 $13,182 (mean salary) = x bar $3,550 = standard deviation President Obama wants to give money to the lowest 15% from the rest of the population. What income level will receive the stimulus mo... |
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| statistics |
| The sum of the residuals is __________. Is it 0? |
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| statistics |
| Payne (2001) gave participants a computerized task in which they first see a face and then a picture of either a gun or a tool. The task was to press one button if it was a tool and a different one if it was a gun. Unknown to the participants while they were doing the study, t... |
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| statistics |
| A psychologist interested in political behavior measured the square footage of the desks in the official office of four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations. The figures for the governors were 44, 36, 52, and 40 square feet. The... |
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| statistics |
| On a standard measure of hearing ability, the mean is 300 and the standard deviation is 20. Give the Z scores for persons who score (a) 340, (b) 310, and (c) 260. Give the raw scores for persons whose Z scores on this test are (d) 2.4, (e) 1.5, (f) 0, and (g) –4.5. |
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| statistics |
| A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal ability test, the mean for people in general is 50 and the standard deviation is 20. For the quantitative ability test, the mean for people in general is 0 and the standard... |
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| Statistics |
| The assignment is in three parts: 1. An analytic section that you will submit as an Excel spread sheet 2. A PowerPoint presentation of 3 to 5 slides. 3. A narrative section that you will submit as a two to three page Word document First, read the business case and identify the... |
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| Statistics |
| If a Pearson r is 0.14 between two tests, what is the correlation between the two? |
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| Statistics |
| Two problems: 1. Find D sub 3 of the following data set: 60, 40, 26, 33, 23, 53, 36, 23, 28, 12, 30, 47 2. Find P sub 26 of the following 25 scores: 38.5, 41.5, 52, 52.5, 61, 63, 63.5, 68, 69, 69, 78.5, 79, 80, 83, 87, 88.5, 88.5, 91, 91.5, 92, 92.5, 94, 94, 97, 97 I have a fo... |
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| Statistics |
| In a blood clinic, each donor is asked to write on a piece of paper if they are HIV positive or not. To maintain privacy, before the donor writes on the paper, he throws a six-sided dice. If the dice is 6, then he is supposed to write “HIV Positive” regardless of whether he ha... |
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| statistics |
| There are four entrances to Govt center. The building supervisor wants to know if entrances are equalized. To investigate, 400 people were seen entering the center. The number using each entrances is below. At the .01 significance level is there a difference in the use of the ... |
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| Statistics |
| 1. The finishing times for the population of all swimmers performing the 100-meter butterfly are normally distributed with a mean ƒÝ of 55 seconds and a standard deviation ƒã of 5 seconds. a.) The sponsors decide to give certificates to all swimmers who finish in under 49 sec... |
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| Statistics |
| 1. The finishing times for the population of all swimmers performing the 100-meter butterfly are normally distributed with a mean ƒÝ of 55 seconds and a standard deviation ƒã of 5 seconds. a.) The sponsors decide to give certificates to all swimmers who finish in under 49 sec... |
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| Statistics |
| What is the difference between "resistant to outliers" and "sensitive to outliers"? I can't seem to find these definitions anywhere. Thanks. |
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| statistics |
| Mi Lang Motors has in stock three cars of the same make and model. The president would like to compare the gas consumption of the three cars (labeled car A, car B, and car C) using four different types of gasoline. For each trial, a gallon of gasoline was added to an empty ta... |
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| Business Algebra |
| After running various advertisements, you have received the statistics from each advertising outlet. A total of 800 ads were run. The following lists the breakdown of each: 380 ads were run over the radio. 240 ads were run in the newspaper. 300 ads appeared on the Internet. 18... |
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| Statistics-Concept Question |
| I have a stats exam tomorrow and I understand the material pretty well, but i sort of get confused. because my homework comes from a section, i know what formulas to use, but i took a practice test and i'm having a hard time identifying whether a problem is poisson or binomial... |
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| Math Statistics |
| An investigational drug study is being conducted. The initial screening phase needs to include enough people so that the final (approved) group has at least 10 patients. The probability of a person being approved for the study is .80. what initial sample size is needed to make... |
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| Statistics |
| An investigational drug study is being conducted. The initial screening phase needs to include enough people so that the final (approved) group has at least 10 patients. The probability of a person being approved for the study is .80. what initial sample size is needed to make... |
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| Statistics |
| 10, 12, 16, 17, 20 I'm having a problem figuring out how the answer is 64... how do I get that because I have to show my work Thanks for your help |
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| Statistics ! |
| Hi I have calculated some statistics using a spreadsheet program and I have to compare three slopes of regression and their significance level in an energy species hypothesis.. -2.11 level of significance is 5% -4.73 level of significance is 1% -4.13 level of significance is 1... |
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| Statistics |
| Hi Can anyone tell me in a regression model are the values of 0.13 0.10 A good indication of of the total y explained in a regression model ?? Thanks. |
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| Statistics - College |
| Dealing with binomials. P(Possible Prize) = 1/1000 n=52 P(winning)=P(x=1)= P(x=1)=52! (1!51!) (.(.001)1 (1-0.001)51 Is the answer 0.050949 OR 5.0949%? |
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| english |
| when employing emotional appeals, a writer should a. be sure that those appeals support his or her logical arguments b. ignore his or her logical arguments c. ignore facts and statistics and concentrate on the reader's feelings d. also use circular reasoning C |
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| Statistics |
| Suppose 52 of the students in class have a calculator and 14 have a computer. It is known that 4 do not have either a computer or calc and there are 64 students in the class. Find the probability that a randomly chosen student has a computer AND a calculator. I know this is an... |
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| Statistics |
| You have heard the commercial for the restaurant that lets you pick any 3 appetizers, any of the 6 entree items and then a dessert. You have been told there are 72 different meal options. How many desserts are available? I don't understand how to calculate this. I know how to ... |
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| eng02 |
| Assignment: Incorporating Statistics, Graphs, and Illustrations Resources: Incorporating Statistics, Graphs, and Illustrations; Creating Tables tutorial; Axia College Writing Resources Web Site; and Axia College’s Writing Style Handbook Due Date: Day 7 [Indiv... |
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| Statistics |
| For the gene pair that determines eye color, each gene trait may be one of two types: dominant brown (B) or recessive blue (b). A person possessing the gene pair BB or Bb has brown eyes, whereas the pair bb produces blue eyes. a) Suppose both parents of an individual are Bb. W... |
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| statistics |
| Hi all i have this assignment,please help me :D . . . . . 1.The following table presents the monthly consumption (C) and income (I) of 5 families, in Jordanian Dinars: (C) (I) 290 400 210 230 200 200 150 220 250 450 A) Plot the data; B) Write the estimated simple regression mo... |
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| Statistics |
| At one university, the students are given z-scores at the end of each semester instead of traditional GPA's. The mean and standard deviation of all the student' culmulative GPA's, on which the z-scores are based, are 2.7 and .5 respectively. i understand how to translate the p... |
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| statistics |
| what is the value of pearson r for th relatioship between quadriceps sstrength and the side step test? explain to justify your anwser. n quadriceps test index (60%) side 31 r=0.528 step p=0.002 test sig.(2 tailed) |
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| statistics |
| 2. Two fair dice are rolled at the same time and the number of dots appearing on both dice is counted. Find the probability that the sum is A. 7 B. is an odd number greater than 6 C. is less than 2 D. Is more than 12 E. Is "Snake Eyes" |
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| statistics |
| 4. A Prisoner escapes from jail. There are three roads leading away form the jail. If the prisoner selects road A to make good here escape, the probability that she succeeeds is 1/4. If she selects road B, the probability that she succeeds is 1/5. If she selects road C, the pr... |
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| statistics |
| 6. six men and four women are standing around a table that has four chairs. if four people are selected randomly to sit at the table, what is the probability that two men and two women will be selected |
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| statistics |
| i am working out of the statistics in action text book and i need help with chapter 9 e39-e47 odds i do not understand it |
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| Statistics |
| A test for independence is applied to a contingency table with 3 rows and 5 columns for two nominal variables. The degrees of freedom for this test will be |
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| statistics |
| The 98% CL for the true average difference in pain levels before versus after hypnosis is (-0.365,3.73). What is the best intereption for this interval??? *note: i said we are 98% confident that the sample average pain reducing effect of hypnosis is between -0.365 and 3.73. |
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| Statistics |
| How many times higher is the murder rate in blacks then whites in America? |
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| statistics |
| Table 1 Variables in the ZYX Case Study Variable Typical Value Level of Measurement (Attribute/Numeric) Position Title Ordinal Income < $25k Ratio Education Bachelors Ordinal Commute < 30 min Ratio Gender Male, Female Nominal Job Sat. 56 Ratio Stress 10 Interval Interest... |
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| Statistics |
| You draw three tickets at random with replacement from the box. What is the chance that you draw at least one odd number? [Hint: A direct calculation of the chance might be hard, so Pascal and Fermat would subtract the chance of its opposite from 100%.] You draw three tickets ... |
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| Writing |
| I'm trying to find a website that shows statistics on how having police in schools affect school violence. Does anyone have any helpful information. |
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| statistics |
| find the value for the correlation coefficient r. x 5 1 4 2 3 y 5 10 12 4 8 |
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| senior courses |
| So far in high school i have taken geometry, algebra 2, and trigonometry. one of my friends is taking calculus and she says its way too difficult. and since i have alot of trouble in algebra and trig myself i dont think calculus would be the right choice for me next year. what... |
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| com 220 |
| How does the author of A Nation Apart organize information to build his argument? Does he include and counterarguments? Why or why not? What kinds of statistics, graphs, or illustrations does the author include? In what ways do these visuals strengthen the author's arguments? |
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| statistics |
| Given the oft-cited statistic that 66.7% of the American public is overweight or obese, you are interested in comparing college students BMI level to the general population. Assuming that the general population has a BMI of (μ) = 27.5 using α level of .05, you hypoth... |
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| Health |
| List at least 3 current (2005-present) statistics on gonorrhea. 1. Approx. 75% of all reported cases of gonorrhea are found in people who are 15 to 29 years of age. 2.The highest rates of infection are usually found in women who are 20 to 24 years of age. 3.Each year, more tha... |
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| com220 |
| help with week5 assignment incorporating statistics,graphs,and illustrations |
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| Statistics -- Probability |
| I need to calculate P(man is a ballet dancer and a musical performer) given the following information... In a random sample of male and female graduates of the New York School for the Arts between the ages of 22-35 you know that: the probability a man is a ballet dancer is 0.2... |
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| statistics |
| A person scores 81 on a test of verbal ability and 6.4 on a test of quantitative ability. For the verbal ability test, the mean for people in general is 50 and the standard deviation is 20. For the quantitative ability test, the mean for people in general is 0 and the standard... |
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| statistics |
| Flaws in a carpet tend to occur with a Poisson distribution at a rate of one flaw every 300 square feet. What is the probability that a carpet that is 9 feet by 14 feet contains no flaws? Probability = how would you set it up in excel? |
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| Financial Management |
| Trying to figure this out. It was an exam question from last year. TLB EXHIBIT 1 SUMMARY OUTPUT Regression Statistics Multiple R 0.397871332 R Square 0.158301597 Adjusted R Square 0.146771482 Standard Error 0.099101922 Observations 75 ANOVA df SS MS F Significance F Regression... |
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| Financial Management |
| TLB EXHIBIT 1 SUMMARY OUTPUT Regression Statistics Multiple R 0.397871332 R Square 0.158301597 Adjusted R Square 0.146771482 Standard Error 0.099101922 Observations 75 ANOVA df SS MS F Significance F Regression 1 0.134839089 0.134839089 13.72940301 0.000407887 Residual 73 0.71... |
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| Statistics |
| Studies find a negative correlation between hours spent watching television and scores on reading tests. Does watching television make people less able to read? Probably, but this doesn't follow from the data. The studies are observational, and it might be that the causality r... |
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| Statistics |
| If each of two independent file servers has a reliability of 93% and either alone can run the website, then the overall website availability is: A)0.8649, B) 0.9300, C) 0.9522, D)0.9951 I came up with B. 0.9300 is this correct |
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| Biology |
| Can you help me find statistics on the amount of people who suffer with genetic disorders/diseases every year or the amount of people who die from genetic disorders. Thanks a million. |
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| Statistics PLEASE HELP |
| 1. In a recent election Smith ran against Jones for Governor. A pre-election poll surveyed 1885 randomly selected voters. Of those surveyed 980 indicated that they planned to vote for Smith. The five questions below pertain to the problem of testing the hypothesis that a major... |
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| Statistics |
| A recent study stated that if a person chewed gum the average number of sticks of gum he or she chewed daily was eight. To teat the claim a researcher selected a random sample of 36 gum chewers and found the mean number of sticks of gum chewed per day was 9 and the standard de... |
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| Statistics formula |
| Which stats formula would i use for the following: Using the following computer output and a=0.05, test for equal means. group n mean std dev 1 10 77.4 16.4 2 12 68.8 15.2 test u1=u2 (VS NE) t=1.29 p=0.21 |
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| this right |
| 7) . How should mixed costs be classified in CVP analysis? What approach is used to effect the appropriate classification? Most of your costs are going to be semi-mixed/semi-variable. You will have to try to segregate the two types of costs, fixed and variable that's really th... |
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| Course Planning |
| I'm trying to decide what math course to take next year. How do Statistics and Trigonometry compare in difficulty? Which is more helpful for the SAT's? THank you for your explanations. |
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| Math |
| I'm trying to decide what math course to take next year. How do Statistics and Trigonometry compare in difficulty? Which is more helpful for the SAT's? THank you for your explanations. |
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| Statistics |
| Using a significance level of 0.05, test for an increase in proportions. group number defects sample size before 30 300 after 36 300 |
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Homework Help: Math
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