What would be a nondirectional hypothesis for this statement. Older drivers are safer than younger ones. I have this not sure if it is correct. There will be a difference between older and younger drivers.
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statistics
What would be a nondirectional hypothesis for this statement. Older drivers are safer than younger ones. I have this not sure if it is correct. There will be a difference between older and younger drivers. 
Statistics Help!
An insurance company asks you to determine whether older drivers are safer than younger ones. Provide a directional hypothesis related to this study. Then, explain how you would need to change the hypothesis so that it would be nondirectional. What happens to the rejection ... 
Stats
a) IHI insurance is interested in determining whether younger drivers (below the age of 25) are more prone to motor accidents than older drivers (25 or older). A random sample of 70 IHI policyholders below the age of 25 were selected and whether they had been in less than 2 (... 
science
I need a hypothesis that I did not use already to determine which bees will fly furtherthe older ones or the younger ones.any ideas? 
stats
IHI insurance is interested in determining whether younger drivers (below the age of 25) are more prone to motor accidents than older drivers (25 or older). A random sample of 68 IHI policyholders below the age of 25 were selected and whether they had been in less than 2 (or 2... 
Child Developmental
Which of the following statements is TRUE? a.Younger children are as likely as older children to remind themselves that they need to pay attention. b.Younger children know fewer attentional "tricks of the trade" than older children. c.Younger and older children are equally ... 
Psychology
I am doing a psychology report where I have to determine if children of older parents are more adjusted and socially skilled. the problem is we are not supposed to actually do research we are supposed to make our findings up based our hypothesis. I made graphs to support my ... 
Statistics
Does the null hypothesis for a nondirectional alternative hypothesis differ from the null hypothesis for a directional alternative hypothesis? Explain. I have no idea how to state the answer for this. 
statistics
Directional and nondirectional hypotheses can be easily interchanged according to the hypothesis the researcher is testing. For instance, a drug company might predict that a drug will help a subject lose weight while another drug company might predict that a drug will alter a ... 
Math!(Need More Help!I did #4,is ti right?)
Directions:Write inequalities for the numbers 3  4 below. Do not solve them! Problems: 3.Stacey and Luis volunteer at the local hospital. Stacey worked 4 more hours than Luis, and together they worked more than 28 hours. What is the least number of hours each worked? 4.Mrs. ... 
Statistics
testing for the differences between means of 2 independent populations where the variances in each population r unknown, u must first perform the Ftest for the difference between 2 variances. Which of the following is correct? a)If the null hypothesis of the Ftest is ... 
psychology
1 Ann, a college freshman, has chosen engineering as her major because her father told her that a degree in engineering would lead to betterpaying jobs upon graduation. She is most likely at which of Marcia's identity statuses? A foreclosure B moratorium C diffusion D ... 
Statistics Help Please!
When computing a ttest, it is important to distinguish between directional and nondirectional hypotheses as the direction will determine the rejection regions. Describe how the rejection regions would differ according to the type of hypothesis you would use. 
HRM
Which of the following is a true statement about older employees? A. Older employees typically can't accept younger people as their managers. B. Older people are often willing and able to learn new technology. C. Employing older people usually increases costs and provides no ... 
algebra
A person is 3 times as old as aonther person but in 15 years she will only be 2 times as old. I found the answer the younger person is 15 years old and the older person is 45 years old. But 15 years from now the younger person will be 30 years old and the older person will be ... 
math
maria colleen patsy and kenyada are 8,9,10,and 11years old. maria is older than patsy and younger than kenyada. colleen is younger than marie and older than patsy. what is each girls age? maria? colleen? patsy? kenyada? Well, start by knowing that Maria is older than Patsy. ... 
math
List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed by name and age. ... 
Stats
Which of the following statement is true? In testing the hypothesis for the equality of two population proportions, the acceptance region for the null hypothesis will be wider than the confidence interval for two population proportions, assuming the same value of alpha. A 95% ... 
Statistics
State the null hypothesis, Ho, and the alternative hypothesis, Ha, that would be used to test these claims. < ¡Ü = ¡Ù ¡Ý > (a) There is an increase in the mean difference between posttest and pretest scores. Ho: ¦Ìd 0 Ha: ¦Ìd 0 (b) Following a special training ... 
math
the sum of the ages of Sylvana’s two daughters is 60. If the older daughter is three years older than the younger daughter, and the younger daughter’s age is y, write an equation that could be used to solve this problem. 
statistics
The data was obtained from car crash experiments. The table values are the chest deceleration data (g) for the dummy in the driver’s seat. Use a 0.05 significance level to test the null hypothesis that the different weight categories have the same mean. Do the data suggest ... 
algebra
Ulani has an older siste and a younger sister. Her older sister is one year more than twice Ulani's age. Ulani's younger sister is three years younger than she is. The sum of their ages is 26. Find Ulani''s age 2x + 1  3 = 26 
Prob and stat
A survey asked people to respond to the statement "I will begin my shopping at the last minute." Thier responses are categorized below. Admitted lastminute shoppers by age group Last minute shopper, under 25, 25 to 44, over 44 Yes, 510, 420, 308 No, 620, 480, 390 Ithere a ... 
drivers ed test
3. one way the national highway safety act helps drivers nationwide is by providing guidelines for maintenance on national highways requiring that all drivers have a federal drivers license providing drivers with insurance setting graduated drivers license privileges 
statistics
twenty percent of drivers drining between 11pm and 3am are drunken drivers. using the binomial probabilities table. fine the problability that in a random sample of 12 drivers drining between 11 pm and 3am , two to four will be drunken drivers 
math
List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed by name and age. ... 
health
whata re some postive sterotypes for the older adults. I can think of many neg. ones but not many postive ones. all I really have is "your not getting older your getting better" 
hypothesis statistic
how a t Test can be employed in hypothesis testing by the use of directional vs. nondirectional hypotheses. Discuss types of research where using the t statistic may be an appropriate alternative to using a zscore. Respond to at least two of your fellow students’ postings. 
Grammar
Select the correct sentence: A) She is younger than he and I. B) She is younger than he and me. C) She is younger than him and I. D) She is younger than him and me. My answer A I feel like C could be the right one also 
Science
I would like to know does this statement makes a good hypothesis for my paper(or)can someone give me some type of insight on how to word it correctly. "My paper will prove that homosexuality is a phenomenon that maybe due to biological factors, enviromental infulences or a ... 
Math
15) Marissa is 3 years older than her younger brother. Her older brother is twice as old as her younger brother. Her older brother is 18. How old are Marissa and her younger brother? 
Spanish: Please Help (CHECK ANSWERS)
19. Your hermano mayor is A.) younger than you. B.) older than you. *C.) more powerful than you. D.) smarter than you. 20. Your hermana menor is *A.) younger than you. B.) older than you. C.) more powerful than you. D.) smarter than you. Thank You 
religion.. (is this correct.)
How are newer religions different from older ones? How are they similar? The older religions had to believe in a certain belief. if they did not beleive in that belief they would end up getting punished. I know there is a country that if you get caught stealing they would end ... 
Math
1. The sum of the ages of two brothers is 46. The younger brother is 10 more than a third of the older brother's age. How old is the younger brother? 2. You have 59 total coins for a total of $12.05. You only have quarters and dimes. How many of each coin do you have? 
help please statistic
Teenage drivers pay more for automobile insurance than older drivers. Also, many insurance companies offer discounts for teenage drivers that achieve good grades. Assume that 20% of all teenage drivers are involved in accidents each year. Assume that 10% of all teenage drivers... 
statistics
A recent report stated "Based on a sample of 250 truck drivers, there is evidence to indicate that, on average, independent truck drivers earn more than companyhired truck drivers." This statement is an example of __________. 
Science Geology (URGENT)
WHICH OF THE FOLLIWING BEST DESCRIBES THE FUNDAMENTAL CONCEPT OF SUPERPOSITION 1. Strata with fossils are generally deposited on strata with no fossils 2. older strata generally are deposited on younger strata without intervening,intermediate age strata 3. Older fossils in ... 
science
Continental crust is ____ and _____ than oceanic crust. A) older, thicker B) older, thinner C) younger, thicker Eliminate D) younger, thinner 
Statistics
What does it mean when a researcher chooses the cutoff in a comparison distribution to be .01? a. It means that to reject the null hypothesis, the result must be higher than a z score of .01 b. It means that to reject the null hypothesis there must be less than a 1% chance ... 
LA Check my answer
Here is the question What Is the Secret to Reaching Someone With Words? In this discussion, you will post issues related to connecting generations. To support your ideas, refer to the texts in this section, other texts you have read, and your personal experience and knowledge... 
drivers' ed.
Are there some merge points where some drivers are entering while other drivers are exiting in close proximity? I was trying to get on earlier today, and if I had accelerated too sharply, I would have come close to a vehicle that was straight ahead of me. 
statistics
The average age for licensed drivers in the county is μ 40.3 years with a standard deviation of 13.2 years. a. A researcher obtained a random sample of n 16 parking tickets and computed an average age of M 38.9 years for the drivers. Compute the zscore for the ... 
Geometry
Can you tell em if this is right? If not, can you tell me what words go where? A truth value statement can be written in the form “if P, then Q.” This “if, then” statement can be true or false. The “if” part is called the hypothesis, and the “then” part is ... 
CHEMISTRY
Give names of the following covalent (nonmetallic) compounds: S4N2 ClF3 I2O5 SeF6 PBr5 H2O C2I6 C5F9H2Cl Si2F6 Si9F10Br7H *The longer ones are the ones I need help on. The shorter ones such as the first one are ones I have completed and would like to make sure that I have got ... 
CHEMISTRY
ive names of the following covalent (nonmetallic) compounds: S4N2 ClF3 I2O5 SeF6 PBr5 H2O C2I6 C5F9H2Cl Si2F6 Si9F10Br7H *The longer ones are the ones I need help on. The shorter ones such as the first one are ones I have completed and would like to make sure that I have got ... 
math
A proposed null hypothesis states that there is no difference in the water consumption of households of two districts. The sample mean difference is found to be 8.5 liters, and the standard deviation of the distribution of the difference in sample means is 4.5 liters. Which ... 
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 of ... 
SCIENCE!
more on hypotheses hypotheses help explain puzzling situations or events. hypotheses answer "how", "what, and "why" questions. explain each of the following situations with a hypothesis: 1. you hang a bird feeder, fill it with food, but no birds come to it. hypothesis: birds ... 
Microbes and Society
Which of the following is the correct sequence of steps in the scientific method? a. observation  prediction  hypothesis  observation  hypothesis b. hypothesis  observation  prediction  hypothesis  observation wrong c. observation  hypothesis  prediction  ... 
Statistics
Most people are definitely dominant on one side of their body  either right or left. For some sports being able to use both sides is an advantage, such as batting in baseball or softball. In order to determine if there is a difference in strength between the dominant and non... 
Statistics
A genetic trait is inherited in such a way that for a father with the trait, his male offspring have a 25% chance of inheriting it but his female offspring cannot inherit it. Suppose that in a certain population, 40% of offspring are male and offspring genders are independent ... 
algebra
two sisters together have 20 books. if the younger sister lost 3 books and the older sister doubled the number she has, they would have a total of 30 books. How many books does each have? 
Microbes and Society
Which of the following is the correct sequence of steps in the scientific method? a. observation  prediction  hypothesis  observation  hypothesis b. hypothesis  observation  prediction  hypothesis  observation c. observation  hypothesis  prediction  observation  ... 
math
List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed by name and age. ... 
math
List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed by name and age. ... 
math
use the names and ages of yourself and the other two people you selected. Make sure one is older than you and one is younger than you. In years, how old was the older person when you were born? Write an equation that models how old in years each of you will be, when your ages ... 
English expression
How many are there in Mina's family? There are five in her family: her mother, her father, her older brother,Minsu, her younger brother Minho and she/her.  Do I have to use 'she' or 'her' at the end of the second sentence? Ae the expressions ... 
Dating with Radioactivity HELP!!!
1. In what type of rocks would geologists most likely find evidence of past life forms? igneous rocks metamorphic rocks volcanic rocks sedimentary rocks** 2. The physical, chemical, and biological laws that operate today have also operated in the geologic past. This statement ... 
statistics
Which of the following statements are true? (A) In testing the hypothesis for the equality of two population proportions, the acceptance region for the null hypothesis will be wider than the confidence interval for two population proportions, assuming the same value of alpha... 
English Grammar
Please help me with these: 1. Difference between 'to' and 'for' and give some example sentences For me, TO is used with a verb, like the infinitive and FOR is used with a noun or gerund. 2. Why cant we say angry to? For me, angry is only used with AT or WITH and not TO but I ... 
Math
Six people are planning a five day backpacking trip. The trail they will take is 67 miles long. Everyone 12 and older will carry a 40 pound pack. Everyone younger will carry a 20pound pack. What is the total weight (in pounds) of the groups backpack? The answer I got is 12 ... 
Math
Six people are planning a five day backpacking trip. The trail they will take is 67 miles long. Everyone 12 and older will carry a 40pound pack. Everyone younger will carry a 20pound pack. What is the total weight (in pounds) of the groups backpack? The answer I got is 12 ... 
childcare
The observation that children with down syndrome may alternate between periods of gain and functioning and periods of little or no advance is the? A functioning difference hypothesis. B variance hypothesis C.variance observation d.slowing and stablility hypothesis A? 
Stats
A statistical test is performed, and its Pvalue turns out to be about 3%. Which of the following must be true? Pick all that are correct. a) The null hypothesis is true. b)There is about a 3% chance that the null hypothesis is true. c) The alternative hypothesis is true. d) ... 
probability and statistics
the average age for licensed drivers in the country is u=40.3 years with a standard deviation of o= 13.2 years. a. a researcher obtained a random sample of n=16 parking tickets and computed an average age of m=38.9 years for the drivers. is it reasonable to conclude that this ... 
Stats
Depending on your school commute on your way to to campus, you regularly stop at one of two of your favorite coffee shop locations "Fresh Pots!". You begin to suspect that one location is inconsistently producing their coffee by watering them down or over brewing them. You ... 
Math
About 190 million drivers are registered in the United States. While on a trip with her family, a student counted the number of male drivers and female drivers on the road. There were 58 male drivers and 48 female drivers. Using the sample predict the number of female drivers ... 
Microbes and Society
Which of the following is not a good example of a scientific hypothesis (i.e., the hypothesis you would set up to test against the null hypothesis)? Answers: a. Smaller class size is related to better academic performance. b. There is no relationship between fatigue and ... 
maths
Data were collected on the differences in weight gains of 12 people one month after they stopped smoking, compared with their weight at the time when they stopped smoking. The data are given in Table 2. A positive quantity corresponds to a gain in weight, a negative quantity ... 
English
1. Drivers sometimes can't see you. 12. Drivers can't sometimes see you. 13. Sometimes drivers can't see you. 14. Drivers can't see you sometimes. (Are all grammatical?) 2.You can get a shock. (What is the meaning of 'get' here?) 3. Mrs. Johnson gave her class a group ... 
algebra
jack and nick are both older than mona pete is older than jack but younger than nick list the people in order from youngest to oldest.?? 
Math
An older person is seven years older than six times the age of a younger person. The sum of their ages is 21. Find ages 
microbes and society
Which of the following is the correct sequence of steps in the scientific method? Answers: a. observation  prediction  hypothesis  observation  hypothesis b. hypothesis  observation  prediction  hypothesis  observation c. observation  hypothesis  prediction  ... 
math
Anthony's older brother is 5 1/6 feet tall, Anthony's younger brother is 2 6/7 feet tall, about how much taller is Anthony's older brother than his younger brother. I got 2 feet? 
math/probability
204 / 205  EXERCISES FOR SECTION 4.2 18 WHAT ARE EQUALY LIKELY OUTCOMES? 19 DESCRIBE THE DIFFERENCE BETWEEN AN IMPOSSIBLE EVENT AND A CERTAIN EVENT IN PROBABILITY. BE SURE TO PROVIDE EXAMPLES. 26 ALZHEIMER'S DISEASE. THE BAR GRAPH IN FIGURE 4.3 SHOWS THE PERCENTAGE OF ... 
Statistics
You want to know if there's a difference between the proportions of high school students and college students who read newspapers regularly. out of a random sample of 500 highschool students, 287 say they read newspapers regularly, and out of a random sample of 420 college ... 
Grammar
1.Select the correct sentence: a.She is younger than him and me. b.She is younger than he and me. c.She is younger than him and I. d.She is younger than he and I. 2. Select the correct sentence: a. They, theirselves, had a happy holiday celebration. b. They, themselves, had a ... 
Spanish6th gradePlease check my answers
Could you please check these I think they're correct but I'm not sure. 1.How old am I? Tengo once años. 2.How old is your father? Mi padre tiene cuarenta y seis. 3.Do I have siblings? Sí,tengo dos hermanos. 4.Son mayores or menores? Son mayores. 5.Are you older or younger ... 
LITERAYURE
In the house on Mango Street why doesn't Esperanza feel Nenny can be her friend? Thank you for using the Jiskha Homework Help Forum. Nenny is the little sister and older sisters usually tend to consider the younger one a pest. She is also younger than Esperanza's friends. 
Statistics
The claim that "38% of those persons who retired from an industrial job before the age of 60 would return to work if a suitable job was available," is to be investigated at the 0.02 level of risk. If 86 out of the 200 workers sampled said they would return to work, what is our... 
Algebra
Find two factors of 15 with a difference of 2. I have 1 and 5. Is that correct? if not can you please show me how to do it.Thanks! no the difference between 1 and 5 is four try 5 and 3 
Math
Hi can someone please help me? A recent study gave the information shown in the table about ages of children receiving toys. The percentages represent all toys sold. Age (years) Percentage of Toys 2 and under 35 69 1012 13 and over 17% 19% 24% 13% 27% What is the ... 
Comprehension
A Proud Identity for Women Drivers For decades, Russia's women drivers have been laughed off the roads by their male counterparts. A new magazine "Woman at the Wheel" has recently been published with the aim of giving women drivers a proud identity. The title of the ... 
Statistics
Help Me Please! In a survey of families in which both parents work, one of the questions asked was, "Have you refused a job, promotion, or transfer because it would mean less time with your family?" A total of 200 men and 200 women were asked this question. "Yes" was the ... 
math
List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed by name and age. ... 
Biology
1. True or false: even when your research does not support your hypothesis, the hypothesis has value. True False 2. Which one of these could define a "hypothesis?" educated guess conclusion scientific prediction 3. Once you have formulated your hypothesis, you would ... 
Math
This seems like it would be a simple math problem but...... How do you create an equation and calculate the difference between 2 birthdays, putting the older person's on top? 5/17/1987 and 10/28/2002 
teacher aide
Mike watches a lot of television programs that contain violence. When he sees an older child bullying a younger one in the park, you would expect him to A ignore it B call an adult C come to the aid of the child d join in What I've read would be he would join in D? I'm I right. 
Psychology
Dr. Wade excitedly explains that the difference between a male and female is apparent in the structure and function of the brain. She is so pleased that you have asked about her research that she eagerly shares slides of PET scans which support her hypothesis. Dr. Wade's ... 
Math
All numbers in our real number system are the product of prime numbers. Complete the following steps for this discussion: 1. List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or ... 
Chemistry  molecular polarity
Hi Dr. Bob. Could you please take a look at the question below and my work? I'm not sure how to get the correct answer for this question. I would greatly appreciate your help! How many of the following molecules are polar? BrCl3 CS2 SiF4 SO3 A) 1 B) 2 C) 3 D) 4 E) 0 The ... 
Math
Jason is 20 years old. He is 4 times older than his younger brother. Which of the following equations could be be used to figure out the age of Jason's brother? a.20x4 b. 20+4 c. 20 divided by 4 d. 204 My answer is A. is that correct? 
4th grade math
when i am rounded to the nearest hundred, i am 3,300. the difference between my ones and thousands digits is 1. my tens digit is the same number as my ones digit. I can be two different numbers. who am i? 
Math
This seems like it would be a simple math problem but...... How do you create an equation and calculate the difference between 2 birthdays, putting the older person's on top? 5/17/1987 and 10/28/2002 PLEASE HELP ME! 
Statistics
Supposed (as is roughly correct) that each child born is equally likely to be a boy or a girl and that sexes of successive children are independent. If we let BG mean that the older child is a boy, and the younger child is a girl, then each of the combinations BB, BG, GB, GG ... 
Math
Question 1 : We would like to test 3 different treatments on a particu lar type of plant. A worker at the local greenhouse will allow us to use 3 among 10 plants. Note: Each treatment will be used on one and only one plant. a) In how many different ways can we assign the ... 
English (grammar)
Hi. I just want to ask if the statement below is grammatically correct: " I'll keep up what I can do for other people. " I think the thought of the statement can be understood, but I'm not sure if the grammar is correct (or the words are like jumbled). Help please. Thank you. :) 
science
What's the difference between hypothesis and a theory? 
Statistics
The research hypothesis is a vitally important element of any quantitative research study. This Discussion provides an opportunity for you to develop your own testable hypothesis based on the data set for the Final Project. To prepare for this Discussion, review this week’s ... 
Math
This seems like it would be a simple math problem but...... How do you create an equation and calculate the difference between 2 birthdays, putting the older person's on top? 5/17/1987 and 10/28/2002 PLEASE HELP ME! hank You