# Statistics

Statistics
example of a finished apa independent project with between subjects and analysis of variance

Statistics
Choose and observational study for and independent project using 3 between subjects and Anova

Probability and statistics
Astronomers treat the number of stars in a given volume of space as a Poisson random variable. The density in the Milky Way Galaxy in the vicinity of our solar system is 1 star per 16 cubic light years. (a) What is the probability of 3 or more stars in 16 cubic light years? (b...

statistics
a student takes a true false test that has 13 questions and guesses randomly at each answer. Let X be the number of questions answered correctly. Find P(fewer than 4)

Statistics
many ground level plants in tropical rainforest have adapted to the shade of the forest canopy. these plants tend to function well as house plants since they require minimal sunlight. A botanist is interested in domesticating a particular plant found in the amazon rainforest...

Statistics
a sample of n=25 scores has a mean of M=65 and an estimated standard error of 2 points. What is the sample variance

English
Complete the following sentence. _____ often answer the questions who, what, why, when, or where. Supporting details (MY ANSWER) Statistics Reading strategies Graphic organizers

statistics
A coin is biased so that the probability of obtaining a head is 2/3. The coin is tossed four times. Find the probability of obtaining exactly two heads.

statistics
. What is inferred by the 95% confidence interval of the mean?

statistics
A study was performed on green sea turtles inhabiting a certain area. Time-depth recorders were deployed on 6 of the 76 captured turtles. The time depth recorders allowed the scientists to track the movement of turtles in the area. The 6 turtles had a mean shel length of 51.2 ...

statistics
the verbal section of GRE exam for admission into graduate school has a mean of 456 (s=140). Assuming the scores are normally distributed what percent of students will score 600 or higher? (choose range that fits your answer)

Civics
Speaker 2: The law would make anyone who looks under 18 without an ID after dark into a criminal. That's not the answer; that's a police state. Confining innocent youth to house arrest does not make young people more responsible. Jan decides to do some more research on the ...

statistics
For a population with a mean of 80 and a standard deviation of 10, what is the Z score corresponding to an individual score of 95?

Economics
A student taking economics, statistics, and finance has decided to spend 9 hours per week studying. The objective is to maximize the average grade, which means maximizing the total grade in the three courses. 1. How should the student allocate her time

Statistics
If is confirm that two thirds of the students of a college are females, calculate the probability that on entering the college, the first two students one meet are (i) the same gender (ii) different gender

Statistics
We investigate if a period of time feels longer or shorter when people are bored compared to when they are not bored. Using independent samples, we obtain these estimates of the time period (in minutes):

statistics
the amount of pyridoxine in grams per multiple vitamin is normally distributed with mean = 110 grams and standard deviation = 25 grams. What is the probability that a randomly selected vitamin will contain between 100 and 110 grams of pyridoxine?

Vocabulary
A large group of homes A. Development B. Technology C. Communication D. Statistics B?

Vocabulary
Building and construction A. Nursing B. Architecture C. Teaching D. Statistics B?

Statistics
Find the number x such that the proportion of observations that are less than x in a Normal distribution with mean 100 and standard deviation 25 is 0.3. (Use 2 decimal places.)

Statistics
Suppose a fair coin is tossed five times and let x be the number that turned up in those five times. **the mean and the standard deviation are respectively... a.) 0.5, 0.5 b.) 2.5, 0.5 c.) 2.5, 2.24 d.) 2.5, 1.12 **find P(x≥1) a.) 0.5 b.) 1.0 c.) 0.03 d.) 0.97 * i just ...

statistics
How large a sample is needed to be able to estimate the proportion to within plus or minus 3% and be 95% sure the estimate is correct? frame contains approximately 25,000.do not take nonresponse into account.

Statistics
A certain disease occurs in 4% of the population. A blood test for this disease shows a false positive 12% of the time. That means a test will show positive given that the person does not have the disease. What is the probability that a person tests positive but does not have ...

statistics
2. At a local university, a sample of 49 evening students was selected in order to determine whether the average age of the evening students is significantly different from 21. The average age of the students in the sample was 23 years. The population standard deviation is ...

Statistics
A breathalyser test is used by police in an area to determine whether a driver has an excess of alcohol in their blood. The device is not totally reliable: 7 % of drivers who have not consumed an excess of alcohol give a reading from the breathalyser as being above the legal ...

Statistics
A certain type of lightbulb is advertised to have an average lifetime of 1,000 hours. Assume the lifetimes of these lightbulbs are approximately normally distributed with a standard deviation of 250 hours. A) Find the percentage of lightbulbs that will fail during their first ...

statistics
Consider the data below: 33.1068240, -6.3331469, 22.2903011, -6.9142991, -21.7899524, -12.1741625, 29.2973275, -34.2364631, -4.4113930, -25.7845033, -12.0375226, 17.9397860, -6.2030667, 0.3504070 , -19.4854146, -10.5979710, -27.1274107, 20.4247578, 17.0975034, -6.8416016, 0....

statistics
Z = 1.5. The mean and variance of the corresponding X are 1.3 and 5.6. Compute X:

statistics
Consider the data from an unknown distribution: 40.68, 32.15, 36.91, 29.00, 35.58, 41.55, 33.83, 29.07, 41.00, 37.68, 41.23, 37.54, 40.33, 36.82, 35.18, 31.67, 38.55, 38.34, 35.86, 40.45, 37.28, 36.65, 32.12, 32.96, 37.65, 39.44, 46.18, 24.21, 42.35, 33.05, 30.90, 42.12, 34.38...

statistics
A sample of blood is assayed for its alcohol content (BAC). The following BAC values are determined from six trials: 0.081%, 0.078%, 0.079%, 0.076%, 0.082%, 0.077% Assume the data follows a Gaussian distribution. For 84% of the possible assay data population determine with 93...

statistics
Z = 1.5. The mean and variance of the corresponding X are 1.3 and 5.6. Compute X:

Statistics
A health care professional wishes to estimate the birth weights of infants. The standard deviation of the birth weights is known to be 8 ounces. How large a sample must she select if she desires to be 95% confident that the true mean is within 6 ounces of the sample mean?

statistics
Z is a standard normal random variate. For Pr(c < Z) = 0.278, what is the value for c?

statistics
4.6 is a N(3.5, 1.2) random variable. What is its standard value, Z?

statistics
A particular fruit's weights are normally distributed, with a mean of 594 grams and a standard deviation of 16 grams. If you pick a fruit at random, then 18% of the time, their mean weight will be greater than how many grams?

Stat
For a recent year the following are the numbers that occurred each month in a city. use a .05 significance level to test the claim that homicides in the city are equally likely for each of the 12 months calculate test statistics, x^2 and p value Month. Number. Month. Number ...

Statistics
In a poll, respondents were asked whether they had ever been in a car accident. 220 respondents indicated that they had been in a car accident and 370 respondents said that they had not been in a car accident. If one of these respondents is randomly selected, what is the ...

Statistics
The time it takes me to wash the dishes is uniformly distributed between 11 minutes and 17 minutes. What is the probability that washing dishes tonight will take me between 12 and 14 minutes? Give your answer accurate to four decimal places.

Math (Statistics)
12. Clancy, Rowling, Tolstoy Readability: Pages were randomly selected by the author J.K.Rowling, Leo Tolstoy, and Tom Clancy books. Use a 0.05 significance level to test the claim that the three samples are from populations with the same mean. Do the books appear to have ...

Math (Statistics)
Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. 8. Male Color Blindness: When conducting research ...

Statistics Homework
10. In a Microsoft Instant Messaging survey, respondents were asked to choose the ,most fun way to flirt, and the accompanying table is based on the results. X P(x) E-mail 0.06 In person 0.55 Instant Messaging 0.24 Text Messaging 0.15

IQ Scores: Use the listed IQ scores. IQ tests are designed so that the mean IQ of the population is 100. Does the sample mean suggest that the sample is consistent with the population? IQ: 96 89 87 87 101 103 103 96 127 126 101 96 93 88 94 85 97 114 113 124

Statistics Homework Help! Statistics Question Political Contributions: Listed below are contributions (in dollars) made to the two presidential candidates in a recent election. All contributions are from the same zip code as the author, and the data are from the Huffington ...

Math Statistics
26. Flight Data: Use the times required to taxi out for takeoff. For American Airlines, how is it helpful to find the mean? Taxi Out: 30 19 12 19 18 22 37 13 14 15 31 15 16 14 15 27 19 22 22 23 16 13 16 18 15 12 19 18 21 20 13 15 43 18 17 19 13 20 12 17 35 19 22 43 49 45 13 23

Statistics Mean and Median Question
Statistics Find The Mean and Median Question 28. IQ Scores: Use the listed IQ scores. IQ tests are designed so that the mean IQ of the population is 100. Does the sample mean suggest that the sample is consistent with the population? IQ: 96 89 87 87 101 103 103 96 127 126 101 ...

Statistics Homework
Statistics Question: Years to Earn Bachelor's Degree Years to Earn Bachelor's Degree: Listed below are the lengths of time (in years) it took for a random sample of college students to earn bachelor's degrees (based on data from the National Center for Education Statistics). ...

statistics
A survey of 50 lobster fishermen on Funafuti (an island in Tuvalu), found that they catch an average of 32 pounds of lobster per day with a standard deviation of four pounds. If a fisherman is selected randomly, what is the probability that his catch is less than 20 pounds?

Statistics
If someone will explain how to work these problems out, that'll help me a ton! A weight loss program claims their patients loose an average of 3 pounds during the first month of the program but a consumer group believes the number is higher than that. A random sample of 8 ...

Statistics Range, Variance, and Standard Deviation
26. Flight Data: Find the range, variance, and standard deviation. Express answers using appropriate units, such as "minutes." Refer to Data Set 15 in Appendix B and use the times required to taxi out for takeoff. Flight 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3 3 3 3 3 3 3 19 19 19...

Statistics Homework
Political Contributions: Listed below are contributions (in dollars) made to the two presidential candidates in a recent election. All contributions are from the same zip code as the author, and the data are from the Huffington Post. Do the contributions appear to favor either...

Statistics
Years to Earn Bachelor’s Degree: Listed below are the lengths of time ( in years) it took for a random sample of college students to earn bachelor’s degrees ( based on data from the U. S. National Center for Education Statistics). Based on these results, does it appear ...

Math statistics
What is the probability of randomly selecting a female from the 25 and 35 years old

Statistics
The mean life expectancy of a certain type of light bulb is 945 hours with a standard deviation of 21 hours. What is the approximate standard deviation of the sampling distribution of the mean for all samples with n=50?

statistics
A zip-code is a five-digit number identifying where in the U.S. an address is located. The first four digits in a zip code can be any number 0-9, but the fifth digit cannot be 0. In addition to this, each address has a “plus-four” code that more specifically identifies the...

Statistics Algebra 2
A 10-question multiple choice test has 4 possible answers for each question. A student guesses on all ten answer. a)What is the probability that the student selects at least 6 correct answers? b)Is getting exactly 10 questions correct the same probability as getting exactly ...

Statistics
Can someone help/check with these questions. I did majority of the work. but some i need help with. Are the mean number of times a month a person eats out the same for whites, blacks, Hispanics and Asians? Suppose that Table 13.26 shows the results of a study (listed below) ...

Statistics
In a simple random sample of 80 patients that go to a certain dentist, 9 patients had their teeth whitened. which interval is the 95% confidence interval for the percent of all the dentist's patients who had their teeth whitened? (4.4, 18.2) (8.4, 14.2) (5.5, 17.1) (7.8, 14.8)

Statistics
Can someone help with these questions. I did majority of the work. but some i need help with. Are the mean number of times a month a person eats out the same for whites, blacks, Hispanics and Asians? Suppose that Table 13.26 shows the results of a study (listed below) Assume ...

Statistics
The probability that Samantha will be accepted by the college of her choice and obtain a scholarship is 0.35. If the probability that she is accepted by the college is 0.65, find the probability that she will obtain a scholarship given that she is accepted by the college.

Statistics
It is claimed that 70% of the cars on the Valley Highway are going faster than 65 miles per hour. A random sample of 12 cars was observed under normal driving conditions with no police car in sight. (A) What is the probability that all of them were going faster than 65 miles ...

maths
The management committee of Oxford school has indicated its desire to accept only 40% of all continuing undergraduate based on the results of the end of second semester examinations.the mean score of the examination is 500 and a standard deviation of 100.find the cut off score...

Math
The following data set is the GPAs of the students in a statistics class. 1.93, 1.99, 2.00, 2.04, 2.12, 2.34, 2.55, 2.55, 2.75, 2.75, 2.80, 2.80, 2.85, 3.02, 3.12, 3.22, 3.31, 3.33, 3.45, 3.69 What percentile is a GPA of 2.34? A. About the 6th B. About the 15th C. About the ...

A survey of mobile call interconnectivity indicates that the average time it takes to connect calls from one network to the other is 25 seconds.Assume the variable is approximately normally distributed and the standard deviation is 4.5 seconds.if 80 calls are randomly selected...

Statistics
You buy a lottery ticket to a lottery that cost \$10 per ticket. There are only 100 tickets available to be sold in this lottery. In this lottery there are one \$500 prize, two \$100 prizes, and four \$25 prizes. Find your expected gain or loss. Do you still want to play raffle?

Statistics
You Buy a lottery ticket to a lottery that cost \$10 per ticket. There only 100 tickets available to be sold in the lottery. In this lottery there are one \$500 prizes, two \$100 prizes and four \$25 prices. Find your expected gain or loss. Do you still want to play the raffle?

Math
The following data set is the GPAs of the students in a statistics class. 1.93, 1.99, 2.00, 2.04, 2.12, 2.34, 2.55, 2.55, 2.75, 2.75, 2.80, 2.80, 2.85, 3.02, 3.12, 3.22, 3.31, 3.33, 3.45, 3.69 What percentile is a GPA of 2.34? A. About the 6th B. About the 15th C. About the ...

Statistics
An unprepared student is about to take his first test of the semester. He is told that his test will be composed of 20 multiple choice questions, each with 4 possible answers, only one of which is correct. a.What is the probability that the unprepared student randomly guesses ...

statistics
Through a mix-up on the production line, 21 defective ovens were shipped out with 29 good ones. If 8 are selected at random, what is the probability that none of them are defective? need help ASAP

Probability and statistics
From among a group of 2 men, 4 women and 6 children, 2 individuals are selected randomly. What is the probability that exactly 1 among the chosen are children?

Probability and statistics
What is the average of all possible five-digit numbers that can be formed by using each of the digits 8, 9, 1, 3 and 6 exactly once? Are you just supposed to try out all the possibilities and count them or is there like a formula or something you can sub numbers into? Thank you

Statistics
You conduct a study on eye color and you questioned 550 people a hundred and ten of them have brown eyes and 44% of them have blue eyes what percentage of the people you question has blue or brown eyes

Math
1. In this scenario, identify the population, the sample, and any population parameters or sample statistics that are given. A medical study followed 675 cancer patients who received either the new drug Lafent or a standard chemotherapy drug. 76% of those who receives Lafent ...

Statistics
Can someone explain to me how I got this question wrong? True/False. It is easier to reject the null hypothesis if the researcher uses a smaller alpha(a) level? I said False As alpha decreases, the rejection region also decreases.

math libral arts
1. In this scenario, identify the population, the sample, and any population parameters or sample statistics that are given. A medical study followed 675 cancer patients who received either the new drug Lafent or a standard chemotherapy drug. 76% of those who receives Lafent ...

statistics
Suppose you toss a coin 100 times and get 73heads and 27tails.what is the probability that the next flip is head?

statistics
study by a class x= single trout mean is = 10.5 inches standard dev is= 1.4 inches probability a single trout is between 8 and 12 inches? probability that length of 5 trout at random is between 8 and 12 inches? the researchers are 93.8% confident is there enough evident to ...

statistics
The Phillies were accused of cheating their beer customers by not putting enough beer in their 12 oz cups. When 15 cups were selected at random, they were found to have a mean of 11.7 ounces with a standard deviation of 0.5 ounces. At the .01 significance level, test the claim...

statistics
A USU Today survey found that of the gun owners surveyed 275 favor stricter gun laws. The survey Involved 500 gun owners. Test the claim that a majority (more than 50%) of gun owners favor stricter gun laws. Use a .05 significance level.

Statistics
Listed below are body temperatures for four subjects measured at two different times in a day. Body Temperature (°𝐹) 𝑎𝑡 6 𝑎𝑚: 98.0,97.0,98.6,97.4 Body Temperature (°𝐹) 𝑎𝑡 6 𝑝𝑚: 98.0,97.6,98.8,98....

english
What does the author achieve by mixing exact and approximate numbers in "A Contribution to Statistics?" can someone explain what they want me to write I'm stuck.

Healthcare Statistics
using the following information, determine if the differences between the means are significant medical terminolgy class. Group A = number of word elements remembered by students using flash cards, group B= number of word elements remembered by students not using flash cards. ...

Healthcare Statistics
Given the following p values, which would be considered more significant? p ¡Ü 0.3 p ¡Ü 0.02 p ¡Ü 0.25

Statistics
I'm totally blanking on how to do this type of problem and I want to use the statistic for an essay. I want to say that females are ___% more likely to be cyberbullied than males. Here is the data I have... Females: 41% reported being bullied Males: 32% reported being bullied

english
What does the author achieve by mixing exact and approximate numbers in "A Contribution to Statistics?"

statistics
Individual M&M plain candies have weights that are normally distributed with a mean weight of 0.8565 g and a standard deviation of 0.0518 g. If you randomly select 465 M&M plain candies, what is the probability that their mean weight will be less than 0.8535 g? what is the ...

statistics
the marks of 100 students in an examination are normally distributed with mean of 25 marks and a standard deviation of 10 marks. Given that the pass mark is 20, estimate the number of students who passed the examination.

statistics
Four percent of DVD players manufactured by an electronics company are defective. Suppose six DVD players are randomly selected from the production line. Each DVD player is determined to be defective or non-defective. a. What is the probability that none of the DVD players are...

Statistics
For a set of scores with a mean of 111 and a standard deviation of 8, what is the percentile rank of 90? (round to two decimal places, no leading zeros)

statistics
A math test consists of 17 multiple choice questions, each with five possible answers (a, b, c, d, e), only one of which is correct. Assume that a student takes the test and randomly answers the questions. What is the probability that the student will get no questions correct?

Math: Statistics
I am trying to report significant data but I'm not sure how to write it out professionally. I did two nominal variables in a chi square test on SPSS. The significance I found is .061 across from "Likelihood Ratio" and under "Asymp sig. 2 Sided". Does that even mean anything?! ...

Statistics
which of the following statements are correct? In hypothesis process, you should a)define the statistical hypothesis b)determine the region of acceptance c)calculate the test statistic d) compare the test statistic e)all the above

Statistics
A coffee-dispensing machine is supposed to deliver 12 ounces of liquid into a large paper cup, but the costumer believes that the actual amount is less. As a test he plans to obtain a sample of 30 cups of the dispensed liquid. The mean of his sample is 11.5 ounces. The machine...

Statistics
A test has a mean of 150 and a student performed 1 standard deviation above the mean. What score did the student have on the test?

Statistics
A survey is being planned to determine the mean amount of time corporation executives watch television. A pilot survey indicated that the mean time per week is 14 hours, with a standard deviation of 2.0 hours. It is desired to estimate the mean viewing time within 30 minutes. ...

Statistics
In a certain Math class, the probabilities have been empirically determined for various numbers of absentees on any given day. These values are shown in the table below. Find the expected number of absentees in a given day. Number of absentees, x 0 1 2 3 4 Probability, P(x) 0....

Statistics
. Two cards are drawn at random, without replacement, from a standard 52-card deck. Find the probability that: (a) both cards are the same color (b) the first card is a face card and the second card is black

Statistics
a rifleman averages 8 hits out of 10 shots at a tare what is the probability that he will hit the target 3 out of 4 shots 4c3*(.8)*(.2)

Elementary Statistics
SAT math test scores for all students taking the test are approximately normally distributed with mean score of 514 and std. deviation of 118. What is the probability that a randomly chosen student will earn a score above 600 on their SAT math test? There's 19 students, ...

statistics
Find the probability that in a family of 4 children there will be (a) at least 1 boy (b) at least 1 girl and 1 boy. Assume that the probability of a male birth is 1/2.

Statistics
Can you create a anova chart on calories of 4 different brands of 7 different favor of theses 4 brands